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Category: Geology and soils

National Geochemical Database: Rock (geochemistry of rock samples)

U.S. Geological Survey, Mineral Resources Program

License
Public domain
Commercial
Yes
Format
Several
Coverage
United States, including Alaska (97.1% of 412,651 samples); a small share of samples from about 97 other countries and ocean areas (bbox is the full data extent)
Last updated
Added to findgis 31 Oct 2026 · Update frequency Irregular

Tags

Supersedes the PLUTO igneous rock extract. Points come with WMS and WFS services, and a small share of samples are from other countries.

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Source and attribution

Publisher
U.S. Geological Survey, Mineral Resources Program
License
Public domain
Commercial use
Yes
Attribution required
No
Modification allowed
See publisher
Redistribution allowed
See publisher
Share-alike
No
U.S. Government work (17 U.S.C. 105); public domain. USGS-authored information is in the public domain (https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits); no commercial-use restriction. Credit to USGS requested.License text
Region
United StatesUS
Type
Vector
Download
ngdbrock.zip (Several, 7.6 MB)ngdbrock-tab.zip (Several, 36.2 MB)ngdbrock.kmz (Several, 1.6 MB)
Service
WMShttps://mrdata.usgs.gov/services/ngdbrockWFShttps://mrdata.usgs.gov/services/wfs/ngdbrock
Extent
-180-85.5179.984.2West, south, east, north. Data extent.

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