Campbell, Harry W., 1996, Procedure for making a mining claim density map from BLM claim recordation digital data: U.S. Geological Survey Open-File Report 96-736, 13 p. This report provides the information needed to generate a mining claim density map from U.S. Bureau of Land Management (BLM) mining claim recordation digital data files. It also includes a brief description of the BLM mining claim database. Definitions of internal BLM computer codes and file structures are given in the appendix. The Open-File Report is available on the World Wide Web at http://pubs.usgs.gov/of/1996/of96-736/ Requirements: A networked computer system is required to copy the report from the host computer across the Internet.