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across the ridge, and the rock layers then slope down to the west. This leaves the
Tuscarora formation more parallel to the steeper western slope, with the crest marking the dividing line between the layers. The tougher rock also protected the slope from erosion, leaving a higher southern ridge line.
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On the north end of the mountain, the rock layers are tipped near vertical, and the mountain has the same double-crested ridge shape as the Bald Eagle ridge extending to the north, with the crests near the center of the harder rock layers. A little further south, there are several fault lines running
423:
on Brush
Mountain. This tornado moved southeast, taking down a swath of trees along the mountain and causing minor damage to homes along a 1.5-mile (2.4 km) path before ending one half mile southeast of Sickles Corner. The path width averaged about one half mile wide. This storm was the fourth
545:
The tilted aspect of the rock layers leaves the
Juniata formation more perpendicular to the upper portion of the shallower opposite slope, below the steep crest. The Bald Eagle formation below holds back the eroding rock, creating a shelf above a steeper lower slope running down to Sinking Valley.
537:
The
Tuscarora Quartzite is more resistant to erosion than the Bald Eagle Sandstone, and both are more resistant than the Juniata formation between them or the other formations stratigraphically above and below them. The two sandstones thus form a double ridge line, with the harder Tuscarora at the
374:
from a small area in the fold, and the dam was made by filling in a small ravine. Kettle Road, a secondary road, runs through the ravine near the dam east into
Sinking Valley. A major power transmission line crosses the ridge twice, midway between the folds.
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The drainage in the shelf area cut a series of small ravines, leaving terraces between them. The terraces wrap around the inside of the
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lies on Brush
Mountain south of Sinking Hollow and on Canoe Mountain and in the valley between.
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Shortly after 11:00 a.m. EST on July 19, 1996, an F1 tornado touched down northeast of
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613:"Storm Events Database - Event Details - National Centers for Environmental Information"
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No major roads or rivers cross the ridge or run through gaps. Kettle
Reservoir collects
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along its slopes. This ridge is part of a chain of ridges that stretch south to
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fold around
Sinking Valley, and then around the outside of the reverse fold on
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367:. The total length of Brush Mountain is approximately 30 miles (48 km).
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The higher southwest section of Brush
Mountain looking southwest toward
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638:
Atlas of
Preliminary Geologic Quadrangle Maps of Pennsylvania
636:
Berg, Thomas M., and Dodge, Christine M., eds., Map 61,
316:, and is the westernmost ridge in its section of the
16:
Mountain in Blair County, Pennsylvania, United States
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640:. Bureau of Topographic and Geologic Survey, 1981 (
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56:. Unsourced material may be challenged and removed.
468:Brush Mountain is in the northern portion of the
534:period, then eroded down to their present form.
65:"Brush Mountain" Blair County, Pennsylvania
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8:
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464:image of Sinking Valley and Brush Mountain
308:. It runs along the southeast side of the
129:
378:The Brush Mountain Ridge is popular with
359:then turns northeast to the Canoe Valley
116:Learn how and when to remove this message
599:Pennsylvania State Game Lands Number 166
591:
320:. The western ridge line separates the
7:
1217:Ridges of Blair County, Pennsylvania
575:List of mountains of the Alleghenies
54:adding citations to reliable sources
300:, United States, lying east of the
419:approximately 1 mile northwest of
14:
331:Brush Mountain lies entirely in
138:
30:
41:needs additional citations for
836:Mount Pisgah (Bradford County)
363:fold, where the ridge becomes
351:, south to the Sinking Valley
1:
957:Ridge-and-Valley Appalachians
580:Bald Eagle Mountain § Geology
402:Pennsylvania State Game Lands
318:Ridge-and-valley Appalachians
312:and forms a horseshoe around
1151:Mount Pisgah (Carbon County)
601:, retrieved 14 November 2018
561:Brush Mountain looming over
1238:
229:Blair County, Pennsylvania
176:2,557 ft (779 m)
18:
488:rocks, consisting of the
204:40.4876889°N 78.3521639°W
137:
261:Millheim (PA) Quadrangle
646:Spruce Creek Quadrangle
209:40.4876889; -78.3521639
1212:Ridges of Pennsylvania
1116:Conococheague Mountain
565:
465:
156:is center right, with
1070:Williamsburg Mountain
1030:Nesquehoning Mountain
560:
474:Appalachian Mountains
472:province of the vast
459:
294:Appalachian Mountains
247:Appalachian Mountains
861:Blue Ridge Mountains
493:Bald Eagle Formation
345:Little Juniata River
310:Little Juniata River
152:is lower right. The
50:improve this article
19:For other uses, see
1222:Allegheny Mountains
1091:Buckingham Mountain
990:Big Savage Mountain
980:Bear Pond Mountains
801:Blue Ridge Mountain
713:Bald Eagle Mountain
695:Allegheny Mountains
642:Millheim Quadrangle
528:Alleghanian orogeny
516:Tuscarora Formation
478:Bald Eagle Mountain
426:family of tornadoes
341:Bald Eagle Mountain
335:. It runs from the
200: /
1161:Osterhout Mountain
1156:Nescopeck Mountain
1111:Conewago Mountains
1101:Catawissa Mountain
1060:Tuscarora Mountain
806:Camelback Mountain
708:Allegheny Mountain
566:
466:
166:Highest point
1199:
1198:
1191:Watchung Outliers
1136:McCauley Mountain
1126:Haystack Mountain
851:Red Rock Mountain
821:Forkston Mountain
816:Endless Mountains
793:Allegheny Plateau
617:www.ncdc.noaa.gov
501:Juniata Formation
428:that had crossed
280:
279:
126:
125:
118:
100:
1229:
1141:Moosic Mountains
1121:Haycock Mountain
1106:Central Mountain
1010:Dunning Mountain
887:Applebutter Hill
846:Pocono Mountains
679:
672:
665:
656:
649:
634:
628:
627:
625:
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608:
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480:and neighboring
470:Ridge and Valley
396:Dunning Mountain
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1176:Pisgah Mountain
1166:Peters Mountain
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1065:Tussey Mountain
1045:Savage Mountain
951:
922:Lehigh Mountain
897:Christines Hill
873:
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826:Miller Mountain
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703:Allegheny Front
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484:are made up of
482:Tussey Mountain
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306:Tussey Mountain
302:Allegheny Front
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1005:Cross Mountain
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942:South Mountain
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907:Hexenkopf Hill
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869:South Mountain
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841:Penobscot Knob
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783:Wills Mountain
780:
778:Sugarloaf Knob
775:
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758:North Mountain
755:
753:Negro Mountain
750:
748:Chestnut Ridge
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723:Brush Mountain
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552:Canoe Mountain
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421:Sickles Corner
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372:surface runoff
365:Canoe Mountain
326:Sinking Valley
283:Brush Mountain
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1015:Hawk Mountain
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995:Blue Mountain
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975:Bear Mountain
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970:Bald Mountain
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892:Chestnut Hill
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563:Hollidaysburg
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192:40°29′15.68″N
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150:Interstate 99
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67: –
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61:Find sources:
55:
51:
45:
44:
39:This article
37:
33:
28:
27:
22:
1181:Sidneys Knob
1040:The Pinnacle
1035:Parnell Knob
985:Big Mountain
831:Mount Ararat
768:Ritchey Knob
728:Herman Point
722:
687:Pennsylvania
637:
632:
622:November 28,
620:. Retrieved
616:
606:
594:
544:
540:
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522:) that were
467:
414:
400:
377:
369:
339:formed with
333:Blair County
330:
322:Logan Valley
304:and west of
298:Pennsylvania
282:
281:
272:First ascent
241:Parent range
195:78°21′7.79″W
127:
112:
103:
93:
86:
79:
72:
60:
48:Please help
43:verification
40:
1186:Turkey Hill
1171:Pimple Hill
1096:Butler Knob
1025:Mount Minsi
1020:Martin Hill
1000:Clarks Knob
937:Saucon Hill
932:Pektor Hill
927:Morgan Hill
743:Mount Davis
738:Laurel Hill
733:Kinton Knob
526:during the
511:), and the
314:Sinking Run
296:of central
207: /
182:Coordinates
1206:Categories
902:Focht Hill
586:References
490:Ordovician
448:counties.
442:Clearfield
405:Number 166
355:fold near
76:newspapers
947:Swoveberg
912:Kirchberg
763:Pine Knob
718:Blue Knob
548:anticline
520:quartzite
509:siltstone
497:sandstone
486:Paleozoic
434:Jefferson
392:Tennessee
353:anticline
337:water gap
324:from the
220:Geography
172:Elevation
158:Blue Knob
917:Kohlberg
811:Elk Hill
569:See also
513:Silurian
361:syncline
266:Climbing
254:Topo map
225:Location
106:May 2013
538:crest.
532:Permian
530:in the
499:), the
476:range.
462:Landsat
452:Geology
446:Cambria
438:Indiana
430:Clarion
424:in the
417:Altoona
411:Tornado
386:pilots
357:Altoona
343:by the
292:in the
276:unknown
146:Altoona
90:scholar
1079:Others
611:NCEI.
524:folded
384:glider
349:Tyrone
92:
85:
78:
71:
63:
505:shale
460:2016
290:ridge
285:is a
97:JSTOR
83:books
624:2017
507:and
444:and
382:and
259:USGS
233:U.S.
69:news
347:at
52:by
1208::
644:,
615:.
554:.
440:,
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398:.
328:.
231:,
148:.
678:e
671:t
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626:.
518:(
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495:(
119:)
113:(
108:)
104:(
94:·
87:·
80:·
73:·
46:.
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
