U.S. Department of the Interior
U.S. Geological Survey
Digital Mapping Techniques ’03—
Workshop Proceedings
Edited by David R. Soller
June 1–4, 2003
Millersville, Pennsylvania
Convened by the
Association of American State Geologists
and the
United States Geological Survey
Hosted by the
Pennsylvania Geological Survey
U.S. Geological Survey Open-File Report 03–471
2003