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1:100,000-scale Counties of the United States

January 1, 1993

This is a coverage of the county boundaries of the conterminous United States (AK, HI and Puerto Rico are available separately). The lines were extracted from U.S. Census TIGER/line files using an AML program (see 4.), written by Doug Nebert and Mark Negri, running on two Data General 6220 servers.

Citation Information

Publication Year 1993
Title 1:100,000-scale Counties of the United States
DOI 10.3133/70046238
Authors
Publication Type Report
Publication Subtype USGS Unnumbered Series
Index ID 70046238
Record Source USGS Publications Warehouse