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Geologic Atlas: Pawpaw-Hancock folio, Maryland-West Virginia-Pennsylvania
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Elkton-Wilmington folio; Maryland-Delaware-New Jersey-Pennsylvania
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Nomini folio, Maryland-Virginia
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Map of Garrett, Allegany and Western Washington Counties in Maryland
From the site: "This map includes short descriptions of geologic units and a cross section showing the distribution of geologic units under the earth’s surface. Among other... -
Physiographic Map of Maryland
The Physiographic Map of Maryland consists of 2 sections. The first section is Explanatory Text for the Physiographic Map of Maryland (Open File Report 08-03-1 ). This... -
Geologic Atlas: Accident-Grantsville folio, Maryland-Pennsylvania-West Virginia
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
USGS Mineral Resources: Maryland geologic map data
From the site: "A GIS database of geologic units and structural features in Maryland, with lithology, age, data structure, and format written and arranged just like the other... -
Geologic Atlas: Washington folio, District of Columbia-Maryland-Virginia
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Harpers Ferry folio, Virginia-Maryland-West Virginia
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Maryland Department of Natural Resources: GeoSpatial Data Center
Downloadable geospatial data for the state of Maryland. Data is categorized by county and data layer. Layers include infrastructure, floodplains, critical area, and protected... -
Geologic Atlas: Piedmont folio, West Virginia-Maryland
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Natural Gas Wells In Maryland
Detailed map pf gas-producing and gas-storing wells in Maryland, relevant to Appalachian Basin research. -
Appalachian Counties ARC Boundary
County outlines of Appalachian counties. -
Geologic Atlas: Patuxent folio, Maryland-District of Columbia
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Tolchester folio, Maryland
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Fredericksburg folio, Virginia-Maryland
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: St. Marys folio, Maryland-Virginia
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Estimated Use of Water in Maryland
Estimated use of water for Maryland at the county level. -
Geologic Atlas: Dover folio, Delaware-Maryland-New Jersey
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both... -
Geologic Atlas: Choptank folio, Maryland
From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both...