40:
229:
2437:
1582:
1049:
553:
442:
Frederickson, E.A., De Lay, M., and Saylor, W.W., 1956, Ralston formation of Canon City embayment, Colorado: American
Association of Petroleum Geologists Bulletin, v. 40, no. 9, p. 2120-2148.
244:
granite and gneiss. To the south, it overlies
Mississippian, Ordovician and Devonian Limestones, as well as Cambrian sandstones. Outcrops of the formation typically dip steeply to the east.
511:
2604:
2423:
2589:
1568:
1035:
539:
504:
2579:
497:
451:
Cross, C.W., 1894, Description of the Pikes Peak sheet : U.S. Geological Survey
Geologic Atlas of the United States, Pikes Peak folio, no. 7, 5 p.
469:
Jennings, J.R., 1980, Fossil plants from the
Fountain Formation (Pennsylvanian) of Colorado: Journal of Paleontology, v. 54, no. 1, p. 149-158.
2430:
1575:
2574:
1042:
546:
460:
Ellis, C.H., 1966, Paleontologic age of the
Fountain Formation south of Denver, Colorado: The Mountain Geologist, v. 3, no. 4, p. 155-160.
343:
Marine invertebrates have been discovered in a limestone and shale member of the
Fountain Formation, cropping out on a low hogback in
2594:
2584:
2569:
1010:
1988:
1806:
1132:
323:
319:
314:
1821:
2599:
1222:
253:
829:
2125:
2076:
2024:
1948:
1005:
724:
217:
739:
44:
Outcrop of the
Fountain Formation at Garden of the Gods. Scale bar on notebook is 10 centimetres (3.9 in)
1721:
1315:
2046:
1928:
1880:
1826:
1252:
1232:
906:
866:
776:
764:
423:
371:
332:
169:
31:
2173:
1726:
1711:
1376:
1192:
1112:
938:
2153:
1998:
1933:
1796:
1274:
1269:
983:
734:
173:
96:
2051:
1761:
1731:
1172:
886:
729:
683:
647:
2540:
2270:
1968:
1953:
1923:
1856:
1242:
1117:
973:
958:
901:
844:
754:
719:
301:
39:
2524:
2275:
2230:
2203:
2168:
2158:
2066:
1851:
1816:
1771:
1741:
1157:
839:
2394:
2389:
2367:
2331:
2041:
2036:
1958:
1938:
1918:
1831:
1791:
1746:
1736:
1654:
1649:
1522:
1517:
2486:
2061:
1963:
1846:
1801:
1786:
1187:
1162:
1152:
963:
953:
849:
759:
744:
344:
2498:
1353:
1348:
1217:
2071:
2008:
1836:
1644:
1512:
1495:
1451:
1142:
1137:
968:
260:. The characteristic predominant red color and the composition of the Fountain reflect that of the
1751:
1535:
1469:
1358:
1310:
1212:
1167:
988:
978:
896:
891:
876:
812:
749:
706:
688:
652:
520:
310:
232:
Fountain
Formation unconformably overlying Precambrian rocks at the parking lot of Red Rocks Park
236:
The
Fountain Formation is found along the Front Range of Colorado. To the north, the Formation
2372:
2350:
2336:
2314:
2307:
2257:
2225:
2217:
1978:
1943:
1811:
1756:
1391:
1381:
1343:
1320:
1247:
1202:
1182:
1122:
943:
916:
871:
834:
607:
287:
278:
228:
2508:
2240:
2196:
2148:
2081:
1993:
1973:
1901:
1781:
1766:
1706:
1689:
1424:
1386:
1338:
1305:
1261:
1237:
1102:
1095:
948:
933:
305:
296:
2208:
2163:
2138:
2056:
1983:
1913:
1841:
1776:
1716:
1434:
1330:
1177:
911:
824:
197:
61:
2470:
2143:
2108:
1861:
1479:
1464:
1416:
1368:
1297:
1147:
698:
292:
213:
148:
212:
The
Fountain Formation was named by geologist C. W. Cross in 1894 for exposures along
2563:
1871:
1637:
1107:
881:
27:
1227:
1197:
1127:
257:
237:
201:
125:
489:
2461:
2452:
2249:
2017:
1597:
1207:
1064:
599:
568:
328:
241:
193:
2359:
2187:
1667:
1086:
590:
364:
360:
352:
2298:
2117:
1628:
1608:
1488:
925:
796:
785:
675:
283:
177:
106:
92:
2517:
2289:
2099:
1889:
1676:
1405:
1288:
1075:
805:
639:
630:
579:
524:
185:
2323:
1619:
1443:
666:
621:
482:
356:
348:
261:
189:
2479:
1504:
859:
265:
181:
227:
110:
2419:
1564:
1031:
535:
493:
422:
Rocks of the Fountain Formation are considered to be of Late
370:
Plant fossils have been discovered in Garden Park north of
426:
age, and are between 290 and 340 million years old.
2516:
2507:
2478:
2469:
2460:
2451:
2358:
2349:
2322:
2306:
2297:
2288:
2248:
2239:
2216:
2195:
2186:
2116:
2107:
2098:
2016:
2007:
1888:
1879:
1870:
1675:
1666:
1636:
1627:
1618:
1607:
1596:
1503:
1487:
1478:
1442:
1433:
1415:
1404:
1367:
1329:
1296:
1287:
1260:
1094:
1085:
1074:
1063:
924:
858:
804:
795:
784:
697:
674:
665:
638:
629:
620:
598:
589:
578:
567:
154:
144:
139:
131:
121:
116:
102:
88:
83:
75:
67:
57:
49:
21:
192:in the United States, along the east side of the
252:The formation was formed by the erosion of the
483:Gravmag.com: Geology of the Fountain Formation
2605:Carboniferous southern paleotropical deposits
2431:
1576:
1043:
547:
505:
8:
2513:
2475:
2466:
2457:
2446:Precambrian chronostratigraphy of Colorado
2438:
2424:
2416:
2355:
2303:
2294:
2245:
2192:
2113:
2104:
2013:
1885:
1876:
1672:
1633:
1624:
1615:
1604:
1583:
1569:
1561:
1484:
1439:
1412:
1293:
1091:
1082:
1071:
1050:
1036:
1028:
801:
792:
671:
635:
626:
595:
586:
575:
554:
540:
532:
512:
498:
490:
38:
18:
2590:Sandstone formations of the United States
256:, and deposition by fluvial processes as
1591:Paleozoic chronostratigraphy of Colorado
1058:Mesozoic chronostratigraphy of Colorado
562:Cenozoic chronostratigraphy of Colorado
435:
172:bedrock unit consisting primarily of
7:
14:
200:, and along the west edge of the
2580:Geologic formations of Colorado
1011:Independence Mountain Formation
1:
1989:Morgan Round Valley Formation
79:0–4,500 feet (0–1,372 m)
16:American geological formation
1822:South Canyon Creek Formation
2575:Pennsylvanian North America
2621:
1807:Sangre de Cristo Formation
830:Central Colorado Volcanics
324:Colorado Springs, Colorado
320:Red Rock Canyon Open Space
315:Colorado Springs, Colorado
268:from which it was eroded.
2415:
2126:Williams Canyon Formation
2032:
2025:Williams Canyon Formation
1949:Jacque Mountain Formation
1560:
1223:Pictured Cliffs Formation
1027:
1006:Gravel Mountain Formation
531:
347:. Invertebrates include
277:Flagstaff Mtn Park, near
254:Ancestral Rocky Mountains
37:
26:
2077:Ste. Genevieve Formation
740:Martins Canyon Formation
725:Cedar Mountain Formation
248:Depositional environment
218:El Paso County, Colorado
2595:Conglomerate formations
1722:Council Grove Formation
1316:Ralston Creek Formation
1253:Williams Fork Formation
1233:Point Lookout Formation
907:Poison Canyon Formation
376:Lepidophloios laricinus
2585:Carboniferous Colorado
2047:Headscrabble Formation
1929:Eagle Valley Evaporite
1827:Stone Corral Formation
1270:Burro Canyon Formation
867:Blanco Basin Formation
777:Grouse Mountain Basalt
765:Wagon Tongue Formation
233:
2541:Uncompahgre Formation
2174:Pinyon Park Formation
1954:Kansas City Formation
1727:Crestone Conglomerate
1712:Cedar Hills Formation
1377:Glen Canyon Formation
1193:Lion Canyon Formation
1118:Cliff House Sandstone
1113:Castle Gate Formation
959:Middle Park Formation
939:Arapahoe Conglomerate
902:Green River Formation
755:Troublesome Formation
720:Browns Park Formation
302:Roxborough State Park
231:
2487:Uinta Mountain Group
2154:Kinderhook Formation
1999:Sharpsdale Formation
1934:Glen Eyrie Formation
1847:Wellington Formation
1802:Phosphoria Formation
1797:Owl Canyon Formation
1787:Minnekahta Formation
1275:Horsetooth Formation
984:South Park Formation
964:Nacimiento Formation
954:Fort Union Formation
745:North Park Formation
735:Los Pintos Formation
333:Cañon City, Colorado
2072:St. Louis Formation
2052:Leadville Formation
1837:Wabaunsee Formation
1762:Ingleside Formation
1732:Day Creek Formation
1645:Chugwater Formation
1513:Chugwater Formation
1496:Chugwater Formation
1452:Chugwater Formation
1173:Kremmling Formation
1143:Fruitland Formation
1138:Fox Hills Formation
1133:Fort Hays Limestone
969:Ojo Alamo Formation
887:Echo Park Formation
730:Flat Tops Volcanics
684:Dry Union Formation
648:Dry Union Formation
396:Lepidostrobophyllum
184:, in the states of
71:Gleneyrie Formation
28:Stratigraphic range
2570:Fountain Formation
2271:Arbuckle Formation
1969:Marmaton Formation
1924:Cherokee Formation
1897:Fountain Formation
1857:Wolfcamp Formation
1752:Glorieta Formation
1685:Fountain Formation
1536:Moenkopi Formation
1470:Moenkopi Formation
1359:Sundance Formation
1311:Morrison Formation
1243:Trinidad Formation
1213:Niobrara Formation
1168:Kirtland Formation
989:Washakie Formation
979:San Jose Formation
974:Raton Conglomerate
897:Huerfano Formation
892:Farisita Formation
845:Pinnacle Formation
813:Arikaree Formation
750:Santa Fe Formation
707:Arikaree Formation
689:Ogallala Formation
653:Ogallala Formation
521:Chronostratigraphy
412:Stigmaria ficoides
311:Garden of the Gods
295:and Amphitheater,
234:
166:Fountain Formation
22:Fountain Formation
2557:
2556:
2553:
2552:
2549:
2548:
2536:
2535:
2532:
2531:
2525:Owiyukuts Complex
2494:
2493:
2411:
2410:
2407:
2406:
2403:
2402:
2385:
2384:
2381:
2380:
2373:Sawatch Formation
2345:
2344:
2337:Sawatch Formation
2315:Dotsero Formation
2284:
2283:
2276:Manitou Formation
2266:
2265:
2258:Dotsero Formation
2231:Simpson Formation
2226:Harding Sandstone
2204:Fremont Limestone
2182:
2181:
2169:Parting Formation
2159:Misener Formation
2134:
2133:
2094:
2093:
2090:
2089:
2067:Spergen Formation
1979:Minturn Formation
1944:Hermosa Formation
1909:
1908:
1852:White Horse Group
1817:Shawnee Formation
1812:Satanka Formation
1772:Lansing Formation
1757:Hermosa Formation
1742:Forelle Formation
1702:
1701:
1698:
1697:
1662:
1661:
1556:
1555:
1552:
1551:
1548:
1547:
1544:
1543:
1531:
1530:
1460:
1459:
1400:
1399:
1392:Wingate Sandstone
1382:Kayenta Formation
1344:Entrada Formation
1321:Wanakah Formation
1283:
1282:
1248:Vermejo Formation
1203:Menefee Formation
1183:Laramie Formation
1158:Hygiene Formation
1023:
1022:
1019:
1018:
1001:
1000:
997:
996:
944:Bridger Formation
917:Wasatch Formation
872:Cuchara Formation
840:Conejos Formation
835:Chadron Formation
820:
819:
773:
772:
715:
714:
661:
660:
616:
615:
608:Alamosa Formation
288:Boulder, Colorado
279:Boulder, Colorado
162:
161:
158:C. W. Cross, 1894
135:Colorado, Wyoming
2612:
2600:Fluvial deposits
2514:
2476:
2467:
2458:
2440:
2433:
2426:
2417:
2395:Tintic Formation
2390:Reagan Formation
2368:Lodore Formation
2356:
2332:Lodore Formation
2304:
2295:
2246:
2193:
2149:Elbert Formation
2114:
2105:
2082:Warsaw Formation
2042:Gilman Formation
2037:Beulah Formation
2014:
1994:Morrow Formation
1974:Maroon Formation
1959:Kerber Formation
1939:Gothic Formation
1919:Belden Formation
1902:Madera Formation
1886:
1877:
1832:Sumner Formation
1792:Opeche Formation
1782:Maroon Formation
1767:Kaibab Limestone
1747:Glendo Formation
1737:Falcon Formation
1707:Blaine Formation
1690:Madera Formation
1673:
1655:Taloga Formation
1650:Lykins Formation
1634:
1625:
1616:
1611:
1605:
1600:
1585:
1578:
1571:
1562:
1523:Taloga Formation
1518:Lykins Formation
1485:
1440:
1425:Chinle Formation
1413:
1408:
1387:Navajo Formation
1339:Carmel Formation
1306:Curtis Formation
1294:
1238:Smoky Hill Chalk
1123:Codell Sandstone
1103:Benton Formation
1092:
1083:
1078:
1072:
1067:
1052:
1045:
1038:
1029:
949:Denver Formation
934:Animas Formation
802:
793:
788:
672:
636:
627:
596:
587:
582:
576:
571:
556:
549:
542:
533:
514:
507:
500:
491:
470:
467:
461:
458:
452:
449:
443:
440:
306:Denver, Colorado
297:Golden, Colorado
272:Notable outcrops
42:
19:
2620:
2619:
2615:
2614:
2613:
2611:
2610:
2609:
2560:
2559:
2558:
2545:
2528:
2503:
2490:
2447:
2444:
2399:
2377:
2341:
2318:
2280:
2262:
2235:
2212:
2209:Viola Formation
2178:
2164:Ouray Formation
2139:Aneth Formation
2130:
2086:
2062:Osage Formation
2057:Molas Formation
2028:
2003:
1984:Molas Formation
1964:Keyes Formation
1914:Atoka Formation
1905:
1866:
1842:Weber Formation
1777:Lyons Formation
1717:Chase Formation
1694:
1658:
1609:
1598:
1592:
1589:
1540:
1527:
1499:
1474:
1456:
1429:
1406:
1396:
1363:
1325:
1279:
1256:
1188:Lewis Formation
1178:Lance Formation
1153:Greenhorn Shale
1076:
1065:
1059:
1056:
1015:
993:
920:
912:Uinta Formation
854:
850:Pitch Formation
825:Brule Formation
816:
786:
780:
769:
760:Trump Formation
711:
693:
657:
612:
580:
569:
563:
560:
527:
518:
479:
474:
473:
468:
464:
459:
455:
450:
446:
441:
437:
432:
420:
388:Lepidophyloides
341:
329:Red Canyon Park
274:
250:
226:
210:
198:Rocky Mountains
62:Lyons Formation
45:
17:
12:
11:
5:
2618:
2616:
2608:
2607:
2602:
2597:
2592:
2587:
2582:
2577:
2572:
2562:
2561:
2555:
2554:
2551:
2550:
2547:
2546:
2544:
2543:
2537:
2534:
2533:
2530:
2529:
2527:
2522:
2520:
2511:
2505:
2504:
2502:
2501:
2499:Tava Formation
2495:
2492:
2491:
2489:
2484:
2482:
2473:
2464:
2455:
2449:
2448:
2445:
2443:
2442:
2435:
2428:
2420:
2413:
2412:
2409:
2408:
2405:
2404:
2401:
2400:
2398:
2397:
2392:
2386:
2383:
2382:
2379:
2378:
2376:
2375:
2370:
2364:
2362:
2353:
2347:
2346:
2343:
2342:
2340:
2339:
2334:
2328:
2326:
2320:
2319:
2317:
2312:
2310:
2301:
2292:
2286:
2285:
2282:
2281:
2279:
2278:
2273:
2267:
2264:
2263:
2261:
2260:
2254:
2252:
2243:
2237:
2236:
2234:
2233:
2228:
2222:
2220:
2214:
2213:
2211:
2206:
2201:
2199:
2190:
2184:
2183:
2180:
2179:
2177:
2176:
2171:
2166:
2161:
2156:
2151:
2146:
2144:Dyer Formation
2141:
2135:
2132:
2131:
2129:
2128:
2122:
2120:
2111:
2102:
2096:
2095:
2092:
2091:
2088:
2087:
2085:
2084:
2079:
2074:
2069:
2064:
2059:
2054:
2049:
2044:
2039:
2033:
2030:
2029:
2027:
2022:
2020:
2011:
2005:
2004:
2002:
2001:
1996:
1991:
1986:
1981:
1976:
1971:
1966:
1961:
1956:
1951:
1946:
1941:
1936:
1931:
1926:
1921:
1916:
1910:
1907:
1906:
1904:
1899:
1894:
1892:
1883:
1874:
1868:
1867:
1865:
1864:
1862:Yeso Formation
1859:
1854:
1849:
1844:
1839:
1834:
1829:
1824:
1819:
1814:
1809:
1804:
1799:
1794:
1789:
1784:
1779:
1774:
1769:
1764:
1759:
1754:
1749:
1744:
1739:
1734:
1729:
1724:
1719:
1714:
1709:
1703:
1700:
1699:
1696:
1695:
1693:
1692:
1687:
1681:
1679:
1670:
1664:
1663:
1660:
1659:
1657:
1652:
1647:
1642:
1640:
1631:
1622:
1613:
1602:
1594:
1593:
1590:
1588:
1587:
1580:
1573:
1565:
1558:
1557:
1554:
1553:
1550:
1549:
1546:
1545:
1542:
1541:
1539:
1538:
1532:
1529:
1528:
1526:
1525:
1520:
1515:
1509:
1507:
1501:
1500:
1498:
1493:
1491:
1482:
1476:
1475:
1473:
1472:
1467:
1465:Jelm Formation
1461:
1458:
1457:
1455:
1454:
1448:
1446:
1437:
1431:
1430:
1428:
1427:
1421:
1419:
1410:
1402:
1401:
1398:
1397:
1395:
1394:
1389:
1384:
1379:
1373:
1371:
1365:
1364:
1362:
1361:
1356:
1354:Page Formation
1351:
1349:Garo Formation
1346:
1341:
1335:
1333:
1327:
1326:
1324:
1323:
1318:
1313:
1308:
1302:
1300:
1291:
1285:
1284:
1281:
1280:
1278:
1277:
1272:
1266:
1264:
1258:
1257:
1255:
1250:
1245:
1240:
1235:
1230:
1225:
1220:
1218:Pando Porphyry
1215:
1210:
1205:
1200:
1195:
1190:
1185:
1180:
1175:
1170:
1165:
1160:
1155:
1150:
1148:Graneros Shale
1145:
1140:
1135:
1130:
1125:
1120:
1115:
1110:
1105:
1100:
1098:
1089:
1080:
1069:
1061:
1060:
1057:
1055:
1054:
1047:
1040:
1032:
1025:
1024:
1021:
1020:
1017:
1016:
1014:
1013:
1008:
1002:
999:
998:
995:
994:
992:
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1128:Dakota Group
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224:Stratigraphy
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202:Denver Basin
174:conglomerate
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140:Type section
126:Denver Basin
97:conglomerate
2250:Tremadocian
2018:Tournaisian
1208:Mowry Shale
1163:Juana Lopez
877:D2 Sequence
600:Pleistocene
408:Cyclopteris
404:Neuropterus
353:brachiopods
304:, south of
242:Precambrian
194:Front Range
53:sedimentary
2564:Categories
2360:Guzhangian
1668:Cisuralian
699:Aquitanian
430:References
380:Sigillaria
372:Cañon City
365:gastropods
345:Perry Park
2299:Furongian
2118:Famennian
1629:Lopingian
1489:Olenekian
926:Paleocene
797:Oligocene
676:Messinian
410:sp., and
400:Calamites
361:echinoids
349:bryozoans
284:Flatirons
240:overlies
178:sandstone
145:Named for
107:limestone
93:sandstone
84:Lithology
76:Thickness
58:Underlies
2518:Siderian
2351:Series 3
2308:Stage 10
1890:Gzhelian
1677:Asselian
806:Chattian
640:Zanclean
631:Pliocene
525:Colorado
357:crinoids
266:gneisses
262:granites
186:Colorado
155:Named by
117:Location
68:Overlies
2324:Paibian
1444:Anisian
667:Miocene
339:Fossils
286:, near
196:of the
190:Wyoming
89:Primary
30:: Late
2480:Tonian
2218:Middle
1505:Induan
1435:Middle
1331:Middle
860:Eocene
363:, and
331:near
182:arkose
132:Extent
122:Region
2241:Lower
2197:Upper
2109:Upper
1480:Lower
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1369:Lower
1298:Upper
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1096:Upper
406:sp.,
398:sp.,
394:sp.,
390:sp.,
386:sp.,
180:, or
168:is a
111:shale
103:Other
264:and
188:and
164:The
50:Type
523:of
418:Age
322:in
313:in
216:in
2566::
2453:pЄ
1610:Pz
1599:Ph
1407:Tr
1077:Mz
1066:Ph
787:Pe
581:Cz
570:Ph
414:.
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2471:Z
2462:♇
2439:e
2432:t
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2290:Є
2188:O
2100:D
2009:M
1881:⁋
1872:C
1620:P
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1289:J
1087:K
1051:e
1044:t
1037:v
622:N
591:Q
555:e
548:t
541:v
513:e
506:t
499:v
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