Mining claim activity on federal land for the period 1976 through 2003 [electronic resource]. - U.S. Department of the Interior, U.S. Geological Survey, 2005. - 1 computer optical disc (CD-ROM) ; 12cm. - (USGS Data Series - 124). - System requirements: Windows intel pentium or Xeon or equivalent, 800 MHz minimum, 1.0GHz or higher recommended; MS Windows 2000, or windows XP, 256MB minimum of RAM, 512MB or higher recommended. - [MFN: 2186]
რეზიუმე: This report describes a process to extract similar statistical data about mining claims from LR2000 data using different software and procedures than were used in the earlier work
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