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- Geology_of_Bedford_County,_Pennsylvania abstract "Bedford County, Pennsylvania is situated along the western border of the Ridge and Valley physiographic province, which is characterized by folded and faulted sedimentary rocks of early to middle Paleozoic age. The northwestern border of the county is approximately at the Allegheny Front, a geological boundary between the Ridge and Valley Province and the Allegheny Plateau (characterized by relatively flat-lying sedimentary rocks of late Paleozoic age). (PA Geological Survey Map 13)The stratigraphic record of sedimentary rocks within the county spans from the Cambrian Warrior Formation to the Pennsylvanian Conemaugh Group (in the Broad Top area). No igneous or metamorphic rocks of any kind exist within the county.The primary mountains within the county (From west to east: Wills, Evitts, Dunning, and Tussey mountains) extend from the southern border with Maryland to the northeast into Blair County, and are held up by the Silurian Tuscarora Formation, made of quartz sandstone and conglomerate. Chestnut Ridge is a broad anticline held up by the Devonian Ridgeley Member of the Old Port Formation, also made of sandstone and conglomerate. Broad Top, located north of Breezewood, is a plateau of relatively flat-lying rocks that are stratigraphically higher, and thus younger (Mississippian and Pennsylvanian), than most of the other rocks within the county (Cambrian through Devonian). Broad Top extends into Huntingdon County to the north and Fulton County to the east.The Raystown Branch of the Juniata River is the main drainage in the northern two-thirds of the county. The river flows to the east through the mountains within the county through several water gaps caused by a group of faults trending east-west through the central part of the county. The river then turns north and flows into Raystown Lake in Huntingdon County. The southern third of the county is drained by several tributaries of the Potomac River. Both the Potomac and Juniata rivers are part of the Chesapeake Bay Watershed.All of Bedford County lies far to the south of the glacial boundary, and thus it was never glaciated (PA Geological Survey Map 59). However, during the Pleistocene epoch, or \"Ice Age,\" periglacial (meaning \"around glacier\" or simply \"cold\") processes dominated. Most of the county was most likely a tundra at that time. The many boulder fields obvious as rocky and often treeless areas on mountainsides within the county formed as a result of seasonal freeze-thaw cycles during the Pleistocene.Several limestone quarries exist in Bedford County, most of which are owned and operated by New Enterprise Stone & Lime Company. Quarry locations include Ashcom, New Paris (inactive), Kilcoin (closed), and Sproul (inactive).Two coal fields exist within Bedford County. One is the Broad Top Field in the northeastern corner of the county, and the other is the Georges Creek Field along the southwestern border (PA Geological Survey Map 11). Both fields contain bituminous coal. There are abandoned mines in both areas and acid mine drainage is an environmental problem in the Broad Top area, where several fishless streams exist as a result of the discharge from the abandoned mines. Natural gas fields and storage areas exist in southeastern Bedford County, primarily within folded Devonian rocks south of Breezewood. Another deep gas field exists in the vicinity of Blue Knob on the border with Blair County to the north. (PA Geological Survey Map 10)".
- Geology_of_Bedford_County,_Pennsylvania thumbnail Bedford-gaps.jpg?width=300.
- Geology_of_Bedford_County,_Pennsylvania wikiPageExternalLink map10.pdf.
- Geology_of_Bedford_County,_Pennsylvania wikiPageExternalLink map11.pdf.
- Geology_of_Bedford_County,_Pennsylvania wikiPageExternalLink bedford.pacounties.org.
- Geology_of_Bedford_County,_Pennsylvania wikiPageExternalLink www.coralcaverns.com.
- Geology_of_Bedford_County,_Pennsylvania wikiPageExternalLink map13.pdf.
- Geology_of_Bedford_County,_Pennsylvania wikiPageExternalLink map59.pdf.
- Geology_of_Bedford_County,_Pennsylvania wikiPageID "10685836".
- Geology_of_Bedford_County,_Pennsylvania wikiPageLength "8834".
- Geology_of_Bedford_County,_Pennsylvania wikiPageOutDegree "112".
- Geology_of_Bedford_County,_Pennsylvania wikiPageRevisionID "612966562".
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Acid_mine_drainage.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Allegheny_Front.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Allegheny_Plateau.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Anticline.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Asphalt.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Bald_Eagle_Formation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Bedford_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Blair_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Blue_Knob_(Pennsylvania).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Breezewood,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Broad_Top.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Bryozoa.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Buchanan_State_Forest.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Cambrian.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Category:Bedford_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Category:Geology_of_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Catskill_Formation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Chaneysville,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Chesapeake_Bay.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Chestnut_Ridge,_Bedford_County.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Coal.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Conglomerate_(geology).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Coral.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Devonian.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Dunning_Mountain.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Evitts_Mountain.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Fault_(geology).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Fold_(geology).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Fulton_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Geology_of_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Glacial_boundary.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Huntingdon_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Igneous_rock.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Juniata_Formation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Juniata_River.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Keyser_Formation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Limestone.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Manns_Choice,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Maryland.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Meander.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Metamorphic_rock.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Mississippian_(geology).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Mount_Davis_(Pennsylvania).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Natural_gas.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink New_Enterprise_Stone_&_Lime_Co.,_Inc..
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Ordovician.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Paleozoic.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Pennsylvania_Turnpike.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Pennsylvanian_(geology).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Periglaciation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Pleistocene.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Potomac_River.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Quarry.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Raystown_Lake.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Reedsville_Formation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Ridge-and-Valley_Appalachians.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Ridgeley_sandstone.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Sandstone.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Sedimentary_rock.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Shale.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Silurian.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Somerset_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Stratigraphy.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink The_Narrows_(Pennsylvania).
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Thrust_fault.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Transpression.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Tundra.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Tuscarora_Formation.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Tussey_Mountain.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink United_States_physiographic_region.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Water_gap.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink Wills_Mountain.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Bedford-co-air.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Bedford-co-rt30-warrior.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Bedford-gaps.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Bedford-thrustfault.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Blue_knob_massif.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Juniata_River_meander.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLink File:Newpariscoral.jpg.
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLinkText "Geology of Bedford County".
- Geology_of_Bedford_County,_Pennsylvania wikiPageWikiLinkText "Geology of Bedford County, Pennsylvania".
- Geology_of_Bedford_County,_Pennsylvania wikiPageUsesTemplate Template:Bedford_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania subject Category:Bedford_County,_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania subject Category:Geology_of_Pennsylvania.
- Geology_of_Bedford_County,_Pennsylvania type Redirect.
- Geology_of_Bedford_County,_Pennsylvania comment "Bedford County, Pennsylvania is situated along the western border of the Ridge and Valley physiographic province, which is characterized by folded and faulted sedimentary rocks of early to middle Paleozoic age. The northwestern border of the county is approximately at the Allegheny Front, a geological boundary between the Ridge and Valley Province and the Allegheny Plateau (characterized by relatively flat-lying sedimentary rocks of late Paleozoic age).".
- Geology_of_Bedford_County,_Pennsylvania label "Geology of Bedford County, Pennsylvania".