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• Organization: Department of the Interior
• Updated: 20201120 | Harvested: July 16, 2025 at 06:17 AM

The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board...

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• Organization: Department of the Interior
• Updated: 2009-03-05 | Harvested: June 25, 2025 at 08:56 PM

The Digital Surficial Geologic Map of the Spalding Unit and Vicinity, Nez Perce National Historical Park, Idaho is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files, two...

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• Organization: Department of the Interior
• Updated: 2009-09-03 | Harvested: June 25, 2025 at 07:51 PM

The Digital Geologic Map of the Marin Headlands and Point Reyes Areas, California is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files, two ancillary GIS tables, a Map PDF...

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