# GRASS Help System

The following USGS publications can be obtained by contacting the address listed below.

- USGS Circular 895-A, "Overview and USGS Activities"
- USGS Circular 895-B, "Digital Elevation Models"
- USGS Circular 895-C, "Digital Line Graphs from 1:24000 Scale Maps"
- USGS Circular 895-D, "Digital Line Graphs from 1:2000000 Scale Maps"
- USGS Circular 895-E, "Land Use and Land Cover Digital Data"
- USGS Circular 895-F, "Geographic Names Information System"
- USGS Circular 895-G, "Digital Line Graph Attribute Coding Standards"
- "Index to Digital Line Graph & Digital Elevation Model Data"
- "Index to Land Use and Land Cover Information"
- "Land Use and Land Cover Digital Data"
- "National Mapping Program, Technical Instructions: Data Users Guide 5",
(United States Geological Survey, Reston, VA., 1987).

National Cartographic Information Center
U.S. Geological Survey
User Services Section
507 National Center
Reston, VA 22092
Phone: 703-860-6045

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Automatically created on: Thu Oct 14 02:12:26 2004