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Allegheny National Forest

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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(06)
EISBN: 9780813756202
... the state sold the entire canal system to the Pennsylvania Railroad for less than half the cost of construction. The Pennsylvania Railroad promptly dismantled the Allegheny Portage Railroad and filled in the canals. Today, the Allegheny Portage Railroad National Historic Site oversees and administers...
FIGURES | View All (25)
Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(06)
EISBN: 9780813756202
... by the Pennsylvania Railroad (PRR) in 1854. Today, only parts of the APR remain. The Allegheny Portage Railroad National Historic Site, a unit of the National Park Service, covers 6 km 2 of the site where the APR arrived at the top of Allegheny Mountain (see Stop 3 for details). The park also oversees the Staple...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2006
GSA Bulletin (2006) 118 (1-2): 140–158.
... and shallow-intrusive rocks from the Caribou Creek volcanic field are reported on Tables DR3 and DR4 (see footnote 1 ). Samples were powdered using an alumina ceramic mixer mill at Allegheny College. Major elements were determined by X-ray fluorescence, and trace elements were determined by inductively...
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Journal Article
Published: 01 February 2019
Environmental and Engineering Geoscience (2019) 25 (1): 27–101.
... and mid-1700s were transported to North America as both nations struggled for domination of the continent. The French claimed the area west of the Allegheny Mountains as theirs, including the combined Ohio and Allegheny Rivers; the English did not recognize these claims. A group of English colonials from...
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Series: GSA Field Guide
Published: 01 January 2012
DOI: 10.1130/2012.0027(02)
EISBN: 9780813756271
... in Kentucky still used for municipal water supply. McConnell Springs was the purported site of Lexington’s founding and occupies a karst window in which distilleries once operated. Cove Spring in Frankfort was the site of the first public water supply west of the Allegheny Mountains. We will also tour two...
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Series: GSA Field Guide
Published: 01 January 2017
DOI: 10.1130/2017.0046(02)
EISBN: 9780813756462
... average elevation. Annual precipitation is 47.8 inches for Oakland, Maryland (Garrett County seat), compared to 37 inches for Cumberland, Maryland (Allegheny County seat), and average annual temperature is 8.67 °C (47.6 °F) compared to 12.7 °C (54.9 °F), respectively (National Oceanic and Atmospheric...
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Journal Article
Published: 01 June 2002
Bulletin of the Seismological Society of America (2002) 92 (5): 1806–1840.
... and times are expressed in GMT. Time calibrations were obtained from the National Bureau of Standards WWV radio stations ( National Bureau of Standards, 1969 ). When available, times are given to the nearest 0.01 sec (uncorrected for WWV propagation), even though 0.1-sec accuracy may be adequate for most...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(07)
EISBN: 9780813756202
... University Libraries. In western Pennsylvania and eastern Ohio, the same, or adjacent, Pennsylvanian rock units from the Pottsville and Allegheny Groups (Fig. 1 ) could contain buhrstone for manufacturing millstones, iron ore suitable for blast furnaces, clay and sandstone for use in bricks...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(07)
EISBN: 9780813756202
.... Geologic map of the Hells Hollow area, McConnells Mill State Park showing distribution of Pennsyl-vanian Pottsville (brown) and Allegheny (yellow) group rocks. Park boundaries are indicated by the intermittent dots and dashes. Trails are indicated by dotted lines. P indicates parking area; number 2...
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Journal Article
Journal: Palynology
Published: 03 April 2017
Palynology (2017) 41 (2): 216–229.
... and charcoal-to-pollen ratios. These sites are: Key Deer Pond in the pine rocklands in south Florida (Albritton 2009 ); Whiteoak Bottoms, a wetland in the Nantahala National Forest, North Carolina (Boehm 2012 ); Binnewater Pond, near Otisville, southeastern New York State (Robinson et al. 2005 ); Lake...
Journal Article
Journal: AAPG Bulletin
Published: 01 August 1979
AAPG Bulletin (1979) 63 (8): 1244–1277.
... actively leasing in these areas for over a year with considerable acreage already under lease and large amounts of acreage on national forest land applied for but not yet approved. No companies have indicated plans to drill in these areas, however, when the companies receive approval of their lease...
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Journal Article
Journal: AAPG Bulletin
Published: 01 September 1980
AAPG Bulletin (1980) 64 (9): 1403–1436.
... to 1979, with 1,614 wells reported. Exploratory completions (137), however, decreased 20.8%. The more active programs again concentrated on lower Chemung and Brallier sandstones in the old Benson trend, and on deep Oriskany tests along the Allegheny Front. Deep drilling decreased slightly (8.1%) but 2...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1985
AAPG Bulletin (1985) 69 (10): 1518–1533.
.... Interest in the Eastern Overthrust belt increased, however, and several discoveries were announced, including a Tuscarora discovery just west of the Allegheny structural front in McDowell County. Deep drilling increased 29.0% and had a success rate of 50.6%, far below the state’s average (95.6%). Gas wells...
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Published: 06 October 2006
DOI: 10.1130/2006.fld008(09)
EISBN: 9780813756080
... and proceed south to Great Falls National Park. Exit Hotel and enter I-81 South. Continue to Exit 29 (King St). Turn left (south) to Cleversburg. Turn right (west) and go to Mainsville. Turn left (south) onto Linsay Lot Road and go to sign on right to Valley Quarries. Enter and turn immediately left...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2013
GSA Bulletin (2013) 125 (3-4): 299–321.
...) View from the landing site, looking toward the horizon. Diameter of the largest clasts in middle distance is ∼15 cm. Dark zones stretching to the right from clasts in the middle distance suggest scour tails. All images are courtesy of National Aeronautics and Space Administration (NASA)/Jet Propulsion...
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Journal Article
Published: 01 December 2015
Environmental Geosciences (2015) 22 (4): 139–148.
...–8176 , doi: 10.1073/pnas.1100682108 . Pekney N. J. Veloski G. Reeder M. Tamilia J. Rupp E. Wetzel A. , 2014 , Measurement of atmospheric pollutants associated with oil and natural gas exploration and production activity in Pennsylvania’s Allegheny National Forest...
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Journal Article
Journal: PALAIOS
Published: 01 March 2011
PALAIOS (2011) 26 (3): 125–139.
..., and, like the traditional boundary, lies within the gap between the Mahoning and Mason coals in the Appalachian Basin. It should be noted that the lithostratigraphic Allegheny-Conemaugh Group boundary (which is used for mapping purposes in the Appalachian Basin) has remained at its traditional position...
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...- graphic sections to be missing, or create repeat sections several times in a single outcrop. To the west of these tightly folded rocks, the linear Allegheny structural front separates the Valley and Ridge Physiographic Province from the Appalachian Plateaus Physiographic Province to the west, which...
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Series: Geological Society, London, Special Publications
Published: 01 January 2008
DOI: 10.1144/SP300.3
EISBN: 9781862395480
... ). Other expeditions into the area led by Captain Lorenzo Sitgreaves, in 1851, and Lieutenant Whipple in 1853, found many more petrified logs (Fig.  6 ) in what was eventually to become the Petrified Forest National Park ( Ash 1969 , 1972 ; Thomas 2005 ). It was Whipple who named Lithodendron Creek (now...
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Journal Article
Published: 01 May 2008
Environmental and Engineering Geoscience (2008) 14 (2): 133–144.
... highways in California and Colorado aided transportation officials. The USGS developed a comprehensive, multi-sector, and multi-agency strategy to mitigate landslide hazards nationwide. This study formed the foundation of the National Landslide Hazards Mitigation Strategy. The USGS, in partnership...
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