Geology and Environmental Geosciences

Library Collections

• David Rumsey Map Collection
• Library of Congress Map Collections
• Perry-Castañeda Library Map Collection

U.S. Geological Survey

• Map Library
• Environmental Data Discovery and Transformation
• Geo Data Portal
• Topographic Maps

U.S. and Other National Maps

• Bureau of Land Management Maps
• Ohio Department of Natural Resources Maps
• National Map
• National Geologic Map Database
• National Geospatial Program
• Natural Resources Canada Maps
• NOAA Office of Coast Survey Historical Map & Chart Collection
• USDA Soil Survey Maps

Other

• Earth History Maps
• One Geology Portal
• OpenGeoscience Maps and Spatial Data
• World Stress Map Project

Gazetteers

• Geography Program (United States Census Bureau)

Map Help

• Geographic Names Information System
• Magnetic Declination Calculator
• FGDC Digital Cartographic Standard for
  Geologic Map Symbolizations