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Maps and Geospatial Information
This is the guide to the Library's Map Collection, and information regarding Geospatial Information.
Many agencies and departments with the U.S. federal government produce maps and mapping data. This information is very high quality and very authoritative.
EnviroAtlas -- EnviroAtlas provides geospatial data, easy-to-use tools, and other resources related to ecosystem services, their chemical and non-chemical stressors, and human health. Produced by the U.S. Environmental Protection Agency (EPA).
Official Federal Land Records -- Access to the official land records of the Bureau of Land Management (BLM), and General Land Office (GLO).