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Explore Search: Pennsylvania

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Geologic map of the Hellertown Quadrangle, Northampton, Bucks, and Lehigh counties, Pennsylvania

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Water-resources activities of the U.S. Geological Survey in Pennsylvania, 1986-87

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Stratigraphic cross sections within the Homer City, Pennsylvania, dedicated coal reserve area

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Hydrology of area 4, Eastern Coal Province, Pennsylvania, Ohio, and West Virginia

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Preimpoundment water quality in the Tioga River Basin, Pennsylvania and New York

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Collage of USGS Maps.

Hydrogeologic framework and generalized shallow ground-water circulation system, Allegheny County, Pennsylvania

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Aeromagnetic map of part of the Williamsport 1° by 2° quadrangle, Pennsylvania

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Effects of roadway and pond construction on sediment yield near Harrisburg, Pennsylvania

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Variations in the chemical character of the Susquehanna River at Harrisburg, Pennsylvania

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Map showing drainage basin of the Red Clay Creek, Delaware and Pennsylvania

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Correlative estimates of discharge of Lackawaxen River and Schuylkill River in Pennsylvania

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Collage of USGS Maps.

Geology of anthracite in the eastern part of the Shenandoah quadrangle, Pennsylvania

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Factors influencing the prevalence of hyperpigmented melanistic lesions in smallmouth bass Micropterus dolomieu in the Susquehanna River Basin, Pennsylvania

State News Release
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Media Alert: Flights above Maryland, Pennsylvania, Virginia, and West Virginia to map geology

Center News
Map of simulated flow paths from a model of regional groundwater flow

USGS Characterizes Flow Paths for Movement of PFAS in Groundwater in Southeastern Pennsylvania

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Occupancy patterns of regionally declining grassland sparrow populations in a forested Pennsylvania landscape

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Occurrence of pharmaceuticals, hormones, and organic wastewater compounds in Pennsylvania waters, 2006-09

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Comparison of recharge estimates at a small watershed in east-central Pennsylvania, USA

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Structural relations along the Taconic unconformity between New York, New Jersey, and Pennsylvania

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Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania

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Water quality in the lower Susquehanna River basin, Pennsylvania and Maryland, 1992-95

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Water Resources Data for Pennsylvania, Water Year 1988. Volume 1: Delaware River Basin

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Radium concentrations in ground water of the Chickies Formation, southeastern Pennsylvania, 1986-87

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Collage of USGS Maps.

Map showing slope movements in the Oak Forest Quadrangle, Greene County, southwestern Pennsylvania

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Collage of USGS Maps.

Mineral resource potential map of the Clarion River Roadless Area, Elk County, Pennsylvania

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Permit requirements for energy and other natural resources for the State of Pennsylvania

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Collage of USGS Maps.

Summary of the hydrogeologic regime as related to environmental characteristics, Allegheny County, Pennsylvania

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Systematic jointing in the western part of the Anthracite region of eastern Pennsylvania

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Geologic map of the Tower City quadrangle, Schuylkill, Dauphin, and Lebanon Counties, Pennsylvania

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An appraisal of the ground-water resources of the Juniata River Basin, Pennsylvania

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