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data theme refers to " [e]lectronic records and coordinates for a topic or subject."
are comprised of one or more sets of geospatial data that have national significance, as established by federal guidance, such as hydrography (i.e., surface water features, such as lakes, ponds, streams, and rivers).
Overview (Geospatial) Edit
OMB Circular No. A-16, App. D.
Geospatial Information: OMB and Agencies Need to Make Coordination a Priority to Reduce Duplication, at 2. ↑
Geospatial Information and Geographic Information Systems (GIS): An Overview for Congress, at 14.