Knowledge (XXG)

Natural arch

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Weather-eroded arches begin their formation as deep cracks which penetrate into a sandstone layer. Erosion occurring within the cracks wears away exposed rock layers and enlarges the surface cracks isolating narrow sandstone walls which are called fins. Alternating frosts and thawing cause crumbling
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Some natural bridges may look like arches, but they form in the path of streams that wear away and penetrate the rock. Pothole arches form by chemical weathering as water collects in natural depressions and eventually cuts through to the layer below.
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and flaking of the porous sandstone and eventually cut through some of the fins. The resulting holes become enlarged to arch proportions by rockfalls and weathering. The arches eventually collapse leaving only buttresses that in time will erode.
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has a road segment called God's Bridge that is 30 m (98 ft) long and 13 m (43 ft) wide, passing over a stone arch 22 m (72 ft) high and 9 m (30 ft) thick.
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Like all rock formations, natural bridges are subject to continued erosion, and will eventually collapse and disappear. One example of this was the double-arched
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in Kentucky. The latter arch is called White's Branch Arch (also known as the Narrows) and the road going over it is usually referred to as the Narrows Road.
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in Utah protects the area surrounding three large natural bridges, all of which were formed by streams running through canyons, the largest of which is named
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is somewhat arbitrary. The Natural Arch and Bridge Society identifies a bridge as a subtype of arch that is primarily water-formed. By contrast, the
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In a few places in the world, natural arches are utilized by humans as transportation bridges with highways or railroads running across them.
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collapse and a ridge of stone is left standing in between, with the cave passageway connecting from sinkhole to sinkhole.
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and has a paved road on top. The second, a weather-eroded sandstone arch with a dirt road on top, is on the edge of
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carved a shorter route through the rock under the arch. The old riverbed is now higher than the present water level.
3537: 3532: 3501: 2670: 2649: 2487: 2108: 1555: 369:, China is currently the world's largest known natural bridge with a span recorded at 400 feet (120 m) by the 35: 2532: 1963: 1932: 1686: 1570: 1549: 1531: 451: 433: 290: 3185: 2128: 1913: 1324: 400: 206: 1336: 1293: 679: 429: 3522: 2866: 719: 177: 3327: 3082: 2090: 1943: 1817: 1801: 1695: 1420: 1412: 1174: 770: 31: 2306: 906: 551: 3473: 1774: 1315: 1153: 560: 1441: 1359: 3302: 3255: 3210: 3195: 2284: 2032: 1972: 1921: 1852: 1836: 1436: 1391: 396: 286: 226: 210: 194: 53: 1166: 3406: 3200: 2764: 1891: 1710: 1513: 1424: 1108: 790: 737: 357:'s namesake was also formed by flowing water which created the largest known natural bridge in the 132: 2581: 664: 3375: 3362: 3215: 3175: 2886: 2789: 2643: 2060: 1778: 1649: 1540: 1004: 358: 597: 3431: 3337: 3250: 2956: 2794: 2784: 2744: 2709: 2693: 2440: 2392: 2376: 2262: 2242: 1947: 1243: 1104: 862: 845: 642: 64: 3426: 3260: 3235: 3230: 3205: 3155: 2981: 2841: 2759: 2724: 2465: 2117: 2028: 2023: 1630: 1216: 1179: 929: 879: 784: 564: 488:
crosses the Rio Yauli on a natural bridge near kilometer 214.2 as it approaches the city of
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has formed with an opening underneath. Natural arches commonly form where inland
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with a span of 234 feet (71 m), based on a laser measurement made in 2007.
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in China, with a span of 122 Â± 5 meters (400 Â± 15 ft).
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with steep, often vertical, cliff faces. The formations become narrower due to
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On coasts two different types of arches can form depending on the geology. On
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defines a natural bridge as a "natural arch that spans a valley of erosion."
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Most natural arches are formed from narrow fins and sea stacks composed of
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Progressive erosion producing plateau, fin, window (or arch), and hoodoos
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in south England. When Stair Hole eventually collapses it will form a
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concentrates the wave energy on the headland, and an arch forms when
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break through the headland. Two examples of this type of arch are
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rock types run parallel to the coastline, with weak rock such as
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The Great Arch, Hizma, Tabuk Province, Kingdom of Saudi Arabia
2535:. Kentucky Society of Professional Geologists. Archived from 417:, China, is an example of an arch formed by the remnant of a 2436:
Richard Ellis - The Photography Collection: Malta & Gozo
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in October 2010, with a precision of ±15 feet (4.6 m).
2605:"Sea stack at Tettegouche toppled by powerful winter storm" 1486:, Utah, a natural bridge formed by a meandering watercourse 2330:"'God's Bridge', the Natural Bridge of Mehedinti, Romania" 458:. The first, a cave erosion arch made of limestone, is in 221:, India. When these arches eventually collapse, they form 165:
The largest natural arch, by a significant margin, is the
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Offbeat Tracks in Maharashtra - A Travel Guide - Book by
2307:"Natural Bridge Trail: Carter Caves State Resort Park" 297:(GSENM), all located in southern Utah, United States. 403:, which lost an arch after storms increased erosion. 454:. Two additional natural arch roadways are found in 3394: 3361: 3166: 3126: 3043: 2700: 1847:Big South Fork National River and Recreation Area 511:Natural arches in the La Cathedrale formation of 331:of Coyote Natural Bridge in Utah shows how the 108:are subject to erosion from the sea, rivers or 2678: 1299:Puentedey, Spain (Puentedei, or God's Bridge) 8: 68:The Great Arch, Tabuk Province, Saudi Arabia 2623:. April 14, 2015. Retrieved March 14, 2018. 2428: 2426: 2424: 2263:"Big 17 Tour - Measurement of Fairy Bridge" 295:Grand Staircase–Escalante National Monument 277:, a very thin arch near the end of its life 2685: 2671: 2663: 2217:"Geology Resources, Arches National Park" 1828:Three Arch Rocks National Wildlife Refuge 1268:, Iceland (collapsed in winter 1992/1993) 783:"Jisr al-Hajar" or the "Stone Bridge" in 353:with a span of 225 feet (69 m). The 1928:(one of the two spans collapsed in 1990) 604:, two mountain ranges with many arches, 285:Many weather-eroded arches are found in 2328:Ciortescu, Ramona (December 10, 2014). 2295:from the original on September 8, 2008. 2273:from the original on November 12, 2013. 2157: 2490:from the original on December 25, 2016 2362:from the original on January 17, 2012. 2223:from the original on December 23, 2015 381:Natural bridges can form from natural 2464:The Natural Arch and Bridge Society. 2252:, The Natural Arch and Bridge Society 2206:, The Natural Arch and Bridge Society 1284:(Podul lui Dumnezeu, or God's Bridge) 34:. For the locality in Australia, see 7: 2453:from the original on April 30, 2016. 425:Arches as highway or railway bridges 197:rock types run at 90° to the coast. 2637:The Natural Arch and Bridge Society 2486:. Natural Arch and Bridge Society. 2403:from the original on March 4, 2017. 2124:(formed in 2020, collapsed in 2021) 233:protected by stronger rock such as 38:. For the U.S. protected area, see 3381:Integrated coastal zone management 2480:"The Worlds Longest Natural Spans" 947:is a natural arch on the coast of 27:Arch-shaped natural rock formation 25: 2393:"Gallery - Thailand - White Hole" 1744:Natural Bridges National Monument 365:, also known as Fairy Bridge, in 347:Natural Bridges National Monument 40:Natural Bridges National Monument 3497: 3496: 3034: 3027: 2658:World map of many natural arches 1793:Rockbridge State Nature Preserve 1756:Rainbow Bridge National Monument 522: 504: 355:Rainbow Bridge National Monument 302: 2183:American Geological Institute, 2165:Natural Arch and Bridge Society 1784:Rock Bridge Memorial State Park 1150:(collapsed in the 20th century) 895:The Great White Hole of Krabi, 371:Natural Arch and Bridge Society 3479:Region of freshwater influence 2185:Dictionary of Geological Terms 2146:List of longest natural arches 1622:Hawaii Volcanoes National Park 1450:Hawaii Volcanoes National Park 460:Carter Caves State Resort Park 160:Dictionary of Geological Terms 1: 3528:Coastal and oceanic landforms 3241:Large-scale coastal behaviour 3073:Beaches in estuaries and bays 1496:Channel Islands National Park 1471:, United States – one of the 1071:Chaos de Montpellier-le-Vieux 579:Goedehoop natural rock bridge 189:, before it collapsed in 2017 2439:. Vol. 4. p. 100. 1663:El Malpais National Monument 962:, Dorset, the United Kingdom 851:Rock Bridge of Gulanchwadi, 818:Natural Arch, Tirumala hills 1918:Port Campbell National Park 1750:Natural Bridges State Beach 1586:Devil's Doorway (Wisconsin) 830:The Pigeons' Rock known as 758:Hazarchishma Natural Bridge 3554: 2558:"Natural Arch of Kentucky" 2248:December 29, 2013, at the 2197:Big 14 Tour - Fairy Bridge 2109:Sete Cidades National Park 1879:"The Hole in the Rock” on 1556:Bryce Canyon National Park 1434: 730:has three natural bridges. 36:Natural Bridge, Queensland 29: 3492: 3025: 2219:. National Park Service. 2009:, New Zealand (collapsed) 1964:Mangapohue Natural Bridge 1933:Springbrook National Park 1735:Natural Bridge State Park 1726:Natural Bridge State Park 1720:Natural Bridge State Park 1571:Creelsboro Natural Bridge 1550:Blackwater Natural Bridge 1532:Ayres Natural Bridge Park 1421:El Arco de Cabo San Lucas 1325:Ĺ uplja Stena Natural Arch 641:, Christmas Harbour, the 464:Natural Bridge State Park 291:Canyonlands National Park 3186:Coastal biogeomorphology 2187:, 1976, Doubleday Anchor 2170:August 31, 2009, at the 2129:Paracas National Reserve 1978:"The Hole in the Rock", 1034:or the Seal cave of the 399:coastal rock formation, 2650:The American Cyclopædia 2644:"Bridge, Natural"  2563:April 19, 2017, at the 2514:April 20, 2017, at the 2433:Ian Ellis, ed. (2011). 2202:April 20, 2017, at the 746:Hawrah Natural Bridge, 720:Baatara gorge waterfall 3083:Coastal morphodynamics 2509:"Koger Arch, Kentucky" 2356:www.discoverfrance.net 2309:. Kentucky State Parks 1944:Kalbarri National Park 1904: 1888: 1818:Tettegouche State Park 1802:Sewanee Natural Bridge 1696:Natural Bridge Caverns 1683:Natural Arch, Kentucky 1487: 1476: 1473:longest natural arches 1457: 1416: 1413:Arch of Cabo San Lucas 1371: 1175:Bosnia and Herzegovina 1038:, in the front of the 977: 963: 952: 937: 771:Jabal Umm Fruth Bridge 692: 676: 496:Notable natural arches 440: 339: 278: 190: 69: 61: 32:Natural Bridge Caverns 3474:Physical oceanography 2484:www.naturalarches.org 2397:www.naturalarches.org 2267:www.naturalarches.org 1894: 1878: 1775:Olympic National Park 1482: 1463: 1444: 1410: 1362: 1337:Wied il-Mielaħ Window 1154:Green Bridge of Wales 969: 958: 943: 927: 682: 667: 561:Boatswain Bird Island 432: 326: 275:Devils Garden (GSENM) 272: 265:Weather-eroded arches 227:concordant coastlines 195:discordant coastlines 180: 139:erodes away creating 80:, or (less commonly) 67: 48: 3303:Submergent coastline 3256:Marine transgression 3211:Discordant coastline 3196:Concordant coastline 2539:on December 23, 2015 2415:"Mountain Angel Eye" 1973:Oparara Basin Arches 1853:Window Rock, Arizona 1837:Tonto Natural Bridge 1824:, collapsed in 2010. 1642:Koger Arch, Kentucky 1437:Arches National Park 1208:Malá PravÄŤická brána 905:Mountain Angel Eye, 844:, natural tunnel in 645:(collapsed ca. 1910) 287:Arches National Park 133:geologic time scales 54:Arches National Park 3407:Coastal engineering 2135:(Collapsed in 2007) 2039:(collapsed in 2021) 1711:Natural Bridge Park 1425:Baja California Sur 1240:(collapsed in 1996) 1109:Castell de Castells 1028:(collapsed in 2017) 791:Elephant Trunk Hill 738:Shirahama, Wakayama 552:Acacus Tedrart Arch 319:Water-eroded arches 150:The choice between 3376:Coastal management 3216:Emergent coastline 2887:Intertidal wetland 2790:Continental margin 1905: 1889: 1762:Rattlesnake Canyon 1704:Natural Bridge of 1650:Zion National Park 1541:Bell Smith Springs 1488: 1477: 1458: 1417: 1372: 1316:Samar Natural Arch 1195:Lalaria beach arch 1005:As Catedrais beach 978: 964: 953: 938: 872:Steller's Arch on 693: 677: 655:has a natural arch 480:The railroad from 441: 359:Western Hemisphere 340: 279: 191: 135:. The softer rock 70: 62: 3538:Erosion landforms 3533:Coastal geography 3510: 3509: 3338:Wave-cut platform 3251:Marine regression 2795:Continental shelf 2785:Coastal waterfall 2694:Coastal geography 2569:naturalarches.org 2520:naturalarches.org 2446:978-99957-33-29-2 2332:. Romania Journal 2289:www.trekearth.com 2033:Galápagos Islands 1948:Western Australia 1942:Nature's Window, 1661:La Ventana Arch, 1597:Eye of the Needle 1244:Marvelous Bridges 981:Albandeira Arch, 846:Thrissur district 643:Kerguelen Islands 213:, Australia, and 16:(Redirected from 3545: 3500: 3499: 3261:Raised shoreline 3236:Ingression coast 3231:Graded shoreline 3206:Cuspate foreland 3038: 3031: 2982:Submarine canyon 2842:Freshwater marsh 2687: 2680: 2673: 2664: 2654: 2646: 2624: 2614: 2608: 2602: 2596: 2595: 2593: 2592: 2582:"Natural Bridge" 2578: 2572: 2555: 2549: 2548: 2546: 2544: 2529: 2523: 2506: 2500: 2499: 2497: 2495: 2476: 2470: 2469: 2461: 2455: 2454: 2430: 2419: 2418: 2411: 2405: 2404: 2389: 2383: 2370: 2364: 2363: 2348: 2342: 2341: 2339: 2337: 2325: 2319: 2318: 2316: 2314: 2303: 2297: 2296: 2281: 2275: 2274: 2259: 2253: 2241:Jett, Stephen C. 2239: 2233: 2232: 2230: 2228: 2213: 2207: 2194: 2188: 2181: 2175: 2162: 2118:San Rafael Falls 2024:Falkland Islands 1931:Natural Bridge, 1398:(collapsed 2005) 1296:, Czech Republic 1180:Inland Sea, Gozo 880:Tianmen Mountain 848:of Kerala, India 785:Mzaar Kfardebian 613:natural bridge, 588:Hole-in-the-Wall 565:Ascension Island 529:Hole-in-the-Wall 526: 508: 421:limestone cave. 415:Guizhou Province 306: 21: 3553: 3552: 3548: 3547: 3546: 3544: 3543: 3542: 3513: 3512: 3511: 3506: 3488: 3464:Intertidal zone 3390: 3357: 3246:Longshore drift 3191:Coastal erosion 3162: 3122: 3058:Beach evolution 3039: 3033: 3032: 3023: 2710:Anchialine pool 2696: 2691: 2641: 2633: 2628: 2627: 2615: 2611: 2603: 2599: 2590: 2588: 2580: 2579: 2575: 2565:Wayback Machine 2556: 2552: 2542: 2540: 2531: 2530: 2526: 2516:Wayback Machine 2507: 2503: 2493: 2491: 2478: 2477: 2473: 2463: 2462: 2458: 2447: 2432: 2431: 2422: 2413: 2412: 2408: 2391: 2390: 2386: 2371: 2367: 2350: 2349: 2345: 2335: 2333: 2327: 2326: 2322: 2312: 2310: 2305: 2304: 2300: 2285:"Port Campbell" 2283: 2282: 2278: 2261: 2260: 2256: 2250:Wayback Machine 2240: 2236: 2226: 2224: 2215: 2214: 2210: 2204:Wayback Machine 2195: 2191: 2182: 2178: 2172:Wayback Machine 2163: 2159: 2154: 2142: 2100:Puente del Inca 2016: 1999:Spörings Arch, 1960: 1910: 1873: 1606:Goat Rock Beach 1456:, United States 1439: 1433: 1405: 1388: 1357: 1352: 1294:PravÄŤická brána 1272:Pistyll Rhaeadr 1219:, Caramujeira, 1079:, Faroe Islands 1049:Bow Fiddle Rock 1036:Corinthian Gulf 932:, Caramujeira, 922: 814:province, China 762:Bamyan Province 752:Andaman Islands 709:Burdah Bridge, 662: 634: 619:Wolfberg Arch, 598:Tassili n'Ajjer 539: 534: 533: 532: 531: 530: 527: 518: 517: 516: 509: 498: 469:In Europe, the 427: 388:, where paired 379: 329:topographic map 321: 316: 315: 314: 312: 307: 267: 225:and stumps. On 219:Andaman Islands 199:Wave refraction 175: 60:, United States 43: 28: 23: 22: 15: 12: 11: 5: 3551: 3549: 3541: 3540: 3535: 3530: 3525: 3523:Natural arches 3515: 3514: 3508: 3507: 3505: 3504: 3493: 3490: 3489: 3487: 3486: 3481: 3476: 3471: 3466: 3461: 3460: 3459: 3454: 3449: 3444: 3439: 3434: 3429: 3424: 3419: 3409: 3404: 3398: 3396: 3392: 3391: 3389: 3388: 3383: 3378: 3373: 3367: 3365: 3359: 3358: 3356: 3355: 3350: 3345: 3340: 3335: 3330: 3325: 3320: 3315: 3310: 3305: 3300: 3295: 3294: 3293: 3283: 3278: 3273: 3268: 3263: 3258: 3253: 3248: 3243: 3238: 3233: 3228: 3223: 3218: 3213: 3208: 3203: 3198: 3193: 3188: 3183: 3178: 3172: 3170: 3164: 3163: 3161: 3160: 3159: 3158: 3153: 3143: 3138: 3132: 3130: 3124: 3123: 3121: 3120: 3115: 3110: 3105: 3100: 3095: 3090: 3085: 3080: 3075: 3070: 3065: 3060: 3055: 3049: 3047: 3041: 3040: 3026: 3024: 3022: 3021: 3014: 3009: 3004: 2999: 2994: 2989: 2984: 2979: 2974: 2969: 2964: 2959: 2954: 2949: 2944: 2939: 2934: 2929: 2924: 2919: 2914: 2909: 2904: 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1659: 1656:Landscape Arch 1653: 1643: 1640: 1637:Hickman Bridge 1634: 1628: 1618:Holei Sea Arch 1615: 1612:Grosvenor Arch 1609: 1603: 1594: 1588: 1583: 1577: 1568: 1562: 1553: 1547: 1538: 1529: 1520: 1511: 1502: 1492:Anacapa Island 1484:Rainbow Bridge 1465:Landscape Arch 1446:Holei Sea Arch 1432: 1429: 1428: 1427: 1404: 1401: 1400: 1399: 1392:Natural Bridge 1387: 1384: 1383: 1382: 1356: 1353: 1351: 1348: 1347: 1346: 1340: 1334: 1328: 1322: 1313: 1300: 1297: 1291: 1285: 1275: 1269: 1263: 1250: 1241: 1227: 1221:Lagoa, Algarve 1214: 1212:Czech Republic 1205: 1192: 1183: 1177: 1167:HajduÄŤka vrata 1164: 1151: 1137: 1124: 1118: 1112: 1102: 1093: 1080: 1074: 1068: 1059: 1046: 1029: 1015: 1002: 989: 983:Lagoa, Algarve 971:Little Prerast 934:Lagoa, Algarve 928:The arches at 921: 918: 917: 916: 913: 903: 893: 890:Xianren Bridge 887: 877: 870: 863:Shipton's Arch 860: 849: 842:Punarjani Guha 839: 828: 815: 805: 788: 781: 776:Jebel Kharaz, 774: 768: 755: 744: 734:Engetsu Island 731: 717: 707: 691:Desert, Israel 661: 658: 657: 656: 646: 639:Kerguelen Arch 633: 630: 629: 628: 627:, South Africa 617: 608: 595: 594:, South Africa 585: 576: 567: 558: 549: 538: 535: 528: 521: 520: 519: 515:range, Algeria 510: 503: 502: 501: 500: 499: 497: 494: 452:Natural Bridge 434:Natural Bridge 426: 423: 378: 375: 363:Xianren Bridge 320: 317: 309: 308: 301: 300: 299: 266: 263: 255:Jurassic Coast 174: 171: 167:Xianren Bridge 98:coastal cliffs 78:natural bridge 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3550: 3539: 3536: 3534: 3531: 3529: 3526: 3524: 3521: 3520: 3518: 3503: 3495: 3494: 3491: 3485: 3482: 3480: 3477: 3475: 3472: 3470: 3469:Littoral zone 3467: 3465: 3462: 3458: 3455: 3453: 3450: 3448: 3445: 3443: 3440: 3438: 3435: 3433: 3430: 3428: 3425: 3423: 3420: 3418: 3415: 3414: 3413: 3410: 3408: 3405: 3403: 3402:Bulkhead line 3400: 3399: 3397: 3393: 3387: 3384: 3382: 3379: 3377: 3374: 3372: 3369: 3368: 3366: 3364: 3360: 3354: 3351: 3349: 3346: 3344: 3343:Wave shoaling 3341: 3339: 3336: 3334: 3331: 3329: 3326: 3324: 3321: 3319: 3318:Surge channel 3316: 3314: 3311: 3309: 3306: 3304: 3301: 3299: 3296: 3292: 3289: 3288: 3287: 3284: 3282: 3279: 3277: 3274: 3272: 3269: 3267: 3264: 3262: 3259: 3257: 3254: 3252: 3249: 3247: 3244: 3242: 3239: 3237: 3234: 3232: 3229: 3227: 3224: 3222: 3219: 3217: 3214: 3212: 3209: 3207: 3204: 3202: 3199: 3197: 3194: 3192: 3189: 3187: 3184: 3182: 3181:Cliffed coast 3179: 3177: 3174: 3173: 3171: 3169: 3165: 3157: 3154: 3152: 3149: 3148: 3147: 3144: 3142: 3139: 3137: 3134: 3133: 3131: 3129: 3125: 3119: 3116: 3114: 3111: 3109: 3108:Shingle beach 3106: 3104: 3101: 3099: 3096: 3094: 3091: 3089: 3086: 3084: 3081: 3079: 3076: 3074: 3071: 3069: 3066: 3064: 3061: 3059: 3056: 3054: 3051: 3050: 3048: 3046: 3042: 3037: 3030: 3020: 3019: 3015: 3013: 3010: 3008: 3005: 3003: 3000: 2998: 2995: 2993: 2990: 2988: 2985: 2983: 2980: 2978: 2975: 2973: 2970: 2968: 2965: 2963: 2960: 2958: 2955: 2953: 2950: 2948: 2945: 2943: 2940: 2938: 2935: 2933: 2930: 2928: 2925: 2923: 2920: 2918: 2915: 2913: 2910: 2908: 2905: 2903: 2900: 2898: 2895: 2893: 2890: 2888: 2885: 2883: 2880: 2878: 2875: 2873: 2870: 2868: 2865: 2863: 2860: 2858: 2855: 2853: 2850: 2848: 2845: 2843: 2840: 2838: 2835: 2833: 2830: 2828: 2825: 2823: 2820: 2816: 2813: 2812: 2811: 2808: 2806: 2803: 2801: 2798: 2796: 2793: 2791: 2788: 2786: 2783: 2781: 2780:Coastal plain 2778: 2776: 2773: 2771: 2768: 2766: 2763: 2761: 2758: 2756: 2753: 2751: 2748: 2746: 2743: 2741: 2738: 2736: 2733: 2731: 2728: 2726: 2723: 2721: 2718: 2716: 2713: 2711: 2708: 2707: 2705: 2703: 2699: 2695: 2688: 2683: 2681: 2676: 2674: 2669: 2668: 2665: 2659: 2656: 2652: 2651: 2645: 2640: 2638: 2635: 2634: 2630: 2622: 2618: 2613: 2610: 2606: 2601: 2598: 2587: 2583: 2577: 2574: 2570: 2566: 2562: 2559: 2554: 2551: 2538: 2534: 2528: 2525: 2521: 2517: 2513: 2510: 2505: 2502: 2489: 2485: 2481: 2475: 2472: 2467: 2460: 2457: 2452: 2448: 2442: 2438: 2437: 2429: 2427: 2425: 2421: 2416: 2410: 2407: 2402: 2398: 2394: 2388: 2385: 2382: 2381:81-7154-669-2 2378: 2375: 2374:Milind Gunaji 2369: 2366: 2361: 2357: 2353: 2347: 2344: 2331: 2324: 2321: 2308: 2302: 2299: 2294: 2290: 2286: 2280: 2277: 2272: 2268: 2264: 2258: 2255: 2251: 2247: 2244: 2238: 2235: 2222: 2218: 2212: 2209: 2205: 2201: 2198: 2193: 2190: 2186: 2180: 2177: 2173: 2169: 2166: 2161: 2158: 2151: 2147: 2144: 2143: 2139: 2134: 2130: 2127:La Catedral, 2126: 2123: 2119: 2116: 2114: 2110: 2107: 2105: 2101: 2098: 2096: 2092: 2088: 2085: 2083: 2079: 2075: 2072: 2070: 2066: 2062: 2059: 2057: 2053: 2050: 2048: 2044: 2041: 2038: 2034: 2030: 2029:Darwin's Arch 2027: 2025: 2021: 2018: 2017: 2014:South America 2013: 2008: 2005: 2003:, New Zealand 2002: 1998: 1996:, New Zealand 1995: 1991: 1988: 1986:, New Zealand 1985: 1981: 1980:Piercy Island 1977: 1975:, New Zealand 1974: 1971: 1969: 1965: 1962: 1961: 1957: 1953: 1949: 1945: 1941: 1938: 1934: 1930: 1927: 1923: 1919: 1915: 1914:London Bridge 1912: 1911: 1907: 1903:, New Zealand 1902: 1898: 1893: 1887:, New Zealand 1886: 1882: 1881:Piercy Island 1877: 1870: 1865: 1862: 1859: 1856: 1854: 1851: 1848: 1845:Twin Arches, 1844: 1842: 1838: 1835: 1833: 1829: 1826: 1823: 1819: 1815: 1812: 1811:Sipapu Bridge 1809: 1807: 1803: 1800: 1798: 1794: 1791: 1789: 1785: 1782: 1780: 1776: 1772: 1769: 1767: 1763: 1760: 1757: 1754: 1751: 1748: 1745: 1742: 1740: 1736: 1733: 1731: 1730:Massachusetts 1727: 1724: 1721: 1718: 1716: 1712: 1709: 1707: 1703: 1701: 1697: 1694: 1692: 1688: 1685: 1682: 1680: 1676: 1673: 1670: 1667: 1664: 1660: 1657: 1654: 1651: 1647: 1644: 1641: 1638: 1635: 1632: 1629: 1627: 1623: 1619: 1616: 1613: 1610: 1607: 1604: 1602: 1598: 1595: 1592: 1589: 1587: 1584: 1581: 1580:Delicate Arch 1578: 1576: 1572: 1569: 1566: 1563: 1561: 1557: 1554: 1551: 1548: 1546: 1542: 1539: 1537: 1533: 1530: 1528: 1524: 1521: 1519: 1515: 1512: 1510: 1506: 1503: 1501: 1497: 1493: 1490: 1489: 1485: 1481: 1474: 1470: 1466: 1462: 1455: 1451: 1447: 1443: 1438: 1431:United States 1430: 1426: 1422: 1419: 1418: 1414: 1409: 1402: 1397: 1393: 1390: 1389: 1385: 1381: 1377: 1374: 1373: 1369: 1365: 1361: 1354: 1350:North America 1349: 1344: 1341: 1339:, Gozo, Malta 1338: 1335: 1332: 1329: 1326: 1323: 1321: 1317: 1314: 1312: 1308: 1304: 1303:Trypitòs Arch 1301: 1298: 1295: 1292: 1289: 1286: 1283: 1279: 1276: 1273: 1270: 1267: 1264: 1262: 1258: 1254: 1251: 1249: 1245: 1242: 1239: 1235: 1234:South Shields 1231: 1228: 1226: 1222: 1218: 1217:Marinha Beach 1215: 1213: 1209: 1206: 1204: 1200: 1196: 1193: 1191: 1187: 1184: 1181: 1178: 1176: 1172: 1168: 1165: 1163: 1159: 1158:Pembrokeshire 1155: 1152: 1149: 1145: 1141: 1138: 1136: 1132: 1128: 1125: 1122: 1119: 1116: 1113: 1110: 1106: 1103: 1101: 1097: 1094: 1092: 1088: 1084: 1081: 1078: 1075: 1072: 1069: 1067: 1063: 1062:Capu Tafunatu 1060: 1058: 1054: 1050: 1047: 1045: 1041: 1037: 1033: 1030: 1027: 1023: 1019: 1016: 1014: 1010: 1006: 1003: 1001: 997: 993: 992:Arco Naturale 990: 988: 984: 980: 979: 976: 972: 968: 961: 957: 950: 946: 942: 935: 931: 930:Marinha Beach 926: 919: 914: 912: 908: 904: 902: 898: 894: 891: 888: 885: 881: 878: 875: 874:Bering Island 871: 868: 864: 861: 858: 854: 850: 847: 843: 840: 837: 833: 829: 827: 823: 819: 816: 813: 809: 806: 804: 800: 796: 792: 789: 786: 782: 779: 775: 772: 769: 767: 763: 759: 756: 753: 749: 745: 743: 739: 735: 732: 729: 725: 721: 718: 716: 712: 708: 706: 702: 698: 695: 694: 690: 686: 681: 674: 670: 666: 659: 654: 650: 647: 644: 640: 636: 635: 631: 626: 622: 618: 616: 612: 609: 607: 603: 602:Tadrart Rouge 599: 596: 593: 589: 586: 584: 580: 577: 575: 571: 568: 566: 562: 559: 557: 553: 550: 548: 544: 541: 540: 536: 525: 514: 513:Tadrart Rouge 507: 495: 493: 491: 487: 483: 478: 476: 472: 467: 465: 461: 457: 453: 449: 446:In Virginia, 444: 439: 435: 431: 424: 422: 420: 416: 412: 408: 404: 402: 401:London Bridge 398: 393: 391: 387: 384: 376: 374: 372: 368: 364: 360: 356: 352: 351:Sipapu Bridge 348: 344: 337: 334: 330: 325: 318: 311: 305: 298: 296: 292: 288: 283: 276: 273:Metate Arch, 271: 264: 262: 260: 256: 252: 248: 247:Lulworth Cove 244: 240: 236: 232: 228: 224: 220: 216: 212: 208: 207:London Bridge 204: 200: 196: 188: 184: 179: 172: 170: 168: 163: 161: 157: 153: 148: 146: 142: 141:rock shelters 138: 134: 130: 126: 122: 117: 115: 111: 107: 103: 99: 95: 91: 87: 84:is a natural 83: 79: 75: 66: 59: 55: 51: 50:Delicate Arch 47: 41: 37: 33: 19: 3333:Volcanic arc 3221:Feeder bluff 3128:River mouths 3093:Raised beach 3088:Pocket beach 3016: 2987:Tidal island 2977:Strand plain 2922:Natural arch 2921: 2648: 2620: 2612: 2600: 2589:. Retrieved 2586:Arkansas.com 2585: 2576: 2568: 2553: 2543:December 23, 2541:. Retrieved 2537:the original 2527: 2519: 2504: 2492:. Retrieved 2483: 2474: 2459: 2435: 2409: 2396: 2387: 2368: 2355: 2346: 2336:November 19, 2334:. Retrieved 2323: 2313:November 19, 2311:. Retrieved 2301: 2288: 2279: 2266: 2257: 2237: 2227:December 23, 2225:. Retrieved 2211: 2192: 2184: 2179: 2160: 2087:Pedra Furada 2074:Pedra Furada 2061:Pedra Furada 2020:Arch Islands 1990:Tunnel Beach 1897:Tunnel Beach 1895:The arch at 1858:Wrather Arch 1771:Rialto Beach 1752:, California 1665:, New Mexico 1608:, California 1475:in the world 1343:Vratna Gates 1253:Monte Forato 1230:Marsden Rock 1018:Azure Window 748:Neill Island 685:Timna Valley 669:Natural Arch 649:Scott Island 625:Western Cape 592:Eastern Cape 583:South Africa 479: 468: 445: 442: 405: 394: 380: 377:Cave erosion 370: 345: 341: 336:Coyote Gulch 284: 280: 215:Neill Island 192: 183:Azure Window 164: 159: 155: 151: 149: 118: 116:processes). 81: 77: 74:natural arch 73: 71: 3484:River plume 3298:Steep coast 3271:Rocky shore 3266:Rip current 3146:River delta 3118:Wash margin 3113:Storm beach 3103:Shell beach 3068:Beach wrack 3063:Beach ridge 3053:Beach cusps 3002:Tied island 2992:Tidal marsh 2715:Archipelago 2494:January 10, 2466:"Puentedei" 2243:China Diary 2007:Mercury Bay 1968:New Zealand 1958:New Zealand 1939:, Australia 1849:, Tennessee 1816:An arch at 1675:Mobius Arch 1631:HonopĹ« Arch 1565:Corona Arch 1331:Tour PercĂ©e 1140:Għar Qawqla 1127:Geropotamos 1083:Durdle Door 1053:Portknockie 1032:Blue Window 973:in eastern 960:Durdle Door 884:Zhangjiajie 857:Maharashtra 853:Narayangaon 766:Afghanistan 697:Keshet Cave 473:village of 448:US Route 11 239:Durdle Door 3517:Categories 3412:Grain size 3386:Submersion 3363:Management 3348:Wind fetch 3308:Surf break 3226:Flat coast 3156:regressive 2942:Salt marsh 2800:Coral reef 2607:2019-12-02 2591:2020-11-24 2152:References 2052:La Portada 2001:Tolaga Bay 1984:Cape Brett 1937:Queensland 1885:Cape Brett 1866:, Kentucky 1864:Yahoo Arch 1779:Washington 1722:, Kentucky 1679:California 1646:Kolob Arch 1591:Druid Arch 1514:Arch Creek 1505:Angel Arch 1500:California 1435:See also: 1376:PercĂ© Rock 1364:PercĂ© Rock 1288:Pont d'Arc 1173:mountain, 1077:Drangarnir 1040:Alcyonides 936:, Portugal 801:province, 724:Tannourine 632:Antarctica 543:Aloba Arch 450:traverses 333:meandering 243:Stair Hole 110:weathering 3371:Accretion 3353:Wind wave 3313:Surf zone 3168:Processes 3141:Mouth bar 3098:Recession 3078:Beachrock 2997:Tide pool 2927:Peninsula 2815:cliff-top 2702:Landforms 2104:Argentina 1952:Australia 1926:Australia 1908:Australia 1860:, Arizona 1822:Minnesota 1806:Tennessee 1739:Wisconsin 1669:Mesa Arch 1552:, Wyoming 1523:Arch Rock 1386:Caribbean 1278:Ponoarele 1266:Ă“færufoss 1115:Es PontĂ s 1096:DyrhĂłlaey 1042:islands, 945:Es PontĂ s 838:, Lebanon 808:Moon Hill 787:, Lebanon 653:Antarctic 621:Cederberg 570:Bogenfels 475:Ponoarele 407:Moon Hill 397:Victorian 390:sinkholes 383:limestone 235:limestone 173:Coastline 125:limestone 121:sandstone 114:subaerial 88:where an 82:rock arch 3502:Category 3328:Undertow 3281:Sea foam 3276:Sea cave 3176:Blowhole 3018:Windwatt 2877:Headland 2725:Avulsion 2561:Archived 2512:Archived 2488:Archived 2451:Archived 2401:Archived 2360:Archived 2293:Archived 2271:Archived 2246:Archived 2221:Archived 2200:Archived 2168:Archived 2140:See also 2047:Colombia 2043:Icononzo 1922:Victoria 1788:Missouri 1766:Colorado 1706:Arkansas 1691:Virginia 1633:, Hawaii 1575:Kentucky 1545:Illinois 1527:Michigan 1415:, Mexico 1370:, Canada 1345:, Serbia 1333:, France 1327:, Serbia 1309:Island, 1290:, France 1248:Bulgaria 1225:Portugal 1201:Island, 1199:Skiathos 1186:Kuhstall 1171:ÄŚvrsnica 1129:bridge, 1123:, France 1105:Els Arcs 1073:, France 1057:Scotland 987:Portugal 949:Mallorca 907:Cao Báş±ng 901:Thailand 876:, Russia 867:Xinjiang 822:Tirumala 780:, Jordan 778:Wadi Rum 773:, Jordan 711:Wadi Rum 683:Arch in 673:Tirumala 615:Tanzania 490:La Oroya 471:Romanian 456:Kentucky 438:Virginia 411:Yangshuo 211:Victoria 86:landform 18:Sea arch 3452:shingle 3432:granule 3417:boulder 3395:Related 3291:peresyp 3201:Current 3136:Debouch 3045:Beaches 3012:Waituna 3007:Tombolo 2917:Mudflat 2912:Machair 2902:Isthmus 2822:Estuary 2765:Channel 2653:. 1879. 2621:nps.gov 2122:Ecuador 2037:Ecuador 1994:Dunedin 1901:Dunedin 1871:Oceania 1841:Arizona 1715:Alabama 1601:Montana 1536:Wyoming 1518:Florida 1282:Romania 1274:, Wales 1257:Tuscany 1238:England 1190:Germany 1182:, Malta 1121:Étretat 1117:, Spain 1111:, Spain 1100:Iceland 1091:England 1009:Ribadeo 951:, Spain 911:Vietnam 892:, China 886:, China 869:, China 859:, India 832:RaouchĂ© 812:Guangxi 799:Guangxi 754:, India 728:Lebanon 701:Galilee 675:, India 651:in the 606:Algeria 574:Namibia 367:Guangxi 217:in the 145:caprock 137:stratum 129:erosion 3442:pebble 3437:gravel 3427:cobble 2972:Strait 2952:Skerry 2907:Lagoon 2892:Island 2847:Fundus 2750:Bodden 2443:  2379:  2174:, FAQ. 2113:Brazil 2095:Brazil 2082:Brazil 2069:Brazil 1992:arch, 1832:Oregon 1813:, Utah 1758:, Utah 1746:, Utah 1671:, Utah 1658:, Utah 1652:, Utah 1639:, Utah 1626:Hawaii 1614:, Utah 1593:, Utah 1582:, Utah 1567:, Utah 1454:Hawaii 1403:Mexico 1380:Quebec 1368:Quebec 1355:Canada 1320:Serbia 1311:Greece 1203:Greece 1135:Greece 1087:Dorset 1066:France 1044:Greece 975:Serbia 920:Europe 836:Beirut 795:Guilin 715:Jordan 705:Israel 687:Park, 611:Tukuyu 537:Africa 293:, and 251:Dorset 223:stacks 152:bridge 106:stacks 94:cliffs 3323:Swash 3286:Shoal 2967:Stack 2957:Sound 2947:Shoal 2897:Islet 2882:Inlet 2872:Hapua 2837:Fjord 2832:Fjard 2827:Firth 2775:Coast 2770:Cliff 2745:Bight 2720:Atoll 2078:PiauĂ­ 2065:Ceará 2056:Chile 1700:Texas 1396:Aruba 1261:Italy 1162:Wales 1148:Malta 1131:Crete 1026:Malta 1013:Spain 1000:Italy 996:Capri 897:Krabi 826:India 803:China 742:Japan 689:Negev 556:Libya 419:karst 386:caves 245:near 231:shale 203:caves 187:Malta 131:over 3457:silt 3447:sand 3422:clay 3151:mega 2962:Spit 2932:Reef 2862:Gulf 2810:Dune 2805:Cove 2760:Cape 2730:Ayre 2545:2015 2496:2017 2441:ISBN 2377:ISBN 2338:2019 2315:2019 2229:2015 2133:Peru 1797:Ohio 1560:Utah 1509:Utah 1469:Utah 1411:The 1307:Paxi 1144:Gozo 1022:Gozo 660:Asia 637:The 600:and 547:Chad 486:Peru 482:Lima 259:cove 241:and 181:The 156:arch 154:and 102:fins 90:arch 58:Utah 2937:Ria 2867:Gut 2857:Geo 2852:Gat 2740:Bay 1305:of 834:in 722:in 409:in 253:'s 249:on 209:in 123:or 104:or 52:in 3519:: 2647:. 2619:. 2584:. 2567:. 2518:. 2482:. 2449:. 2423:^ 2399:. 2395:. 2358:. 2354:. 2291:. 2287:. 2269:. 2265:. 2131:, 2120:, 2111:, 2102:, 2093:, 2089:, 2080:, 2076:, 2067:, 2063:, 2054:, 2045:, 2035:, 2031:, 2022:, 1982:, 1966:, 1950:, 1946:. 1935:, 1924:, 1920:, 1916:, 1899:, 1883:, 1839:, 1830:, 1820:, 1804:, 1795:, 1786:, 1777:, 1773:, 1764:, 1737:, 1728:, 1713:, 1698:, 1689:, 1677:, 1648:, 1624:, 1620:, 1599:, 1573:, 1558:, 1543:, 1534:, 1525:, 1516:, 1507:, 1498:, 1494:, 1467:, 1452:, 1448:, 1423:, 1394:, 1378:, 1366:, 1318:, 1280:, 1259:, 1255:, 1246:, 1236:, 1232:, 1223:, 1210:, 1197:, 1188:, 1169:, 1160:, 1156:, 1146:, 1142:, 1133:, 1107:, 1098:, 1089:, 1085:, 1064:, 1055:, 1051:, 1024:, 1020:, 1011:, 1007:, 998:, 994:, 985:, 909:, 899:, 882:, 865:, 855:, 824:, 820:, 810:, 797:, 793:, 764:, 760:, 750:, 740:, 736:, 726:, 713:, 703:, 699:, 671:, 623:, 590:, 581:, 572:, 563:, 554:, 545:, 492:. 484:, 436:, 413:, 327:A 289:, 261:. 185:, 100:, 96:, 76:, 72:A 56:, 2686:e 2679:t 2672:v 2594:. 2547:. 2498:. 2468:. 2417:. 2340:. 2317:. 2231:. 112:( 42:. 20:)

Index

Sea arch
Natural Bridge Caverns
Natural Bridge, Queensland
Natural Bridges National Monument

Delicate Arch
Arches National Park
Utah

landform
arch
cliffs
coastal cliffs
fins
stacks
weathering
subaerial
sandstone
limestone
erosion
geologic time scales
stratum
rock shelters
caprock
Xianren Bridge

Azure Window
Malta
discordant coastlines
Wave refraction

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