U.S. Geological Survey - U.S. Public Domain
USGS-PUBLIC-DOMAIN · v1
Works produced by the U.S. Geological Survey are in the U.S. public domain. Any use is permitted, including commercial use and redistribution. Credit is requested but not required.
Attribution text
Source: U.S. Geological Survey, Mineral Commodity Summaries.
Our notes
Reviewed 2026-09-04 against the USGS copyrights and credits page, which states USGS-authored data are in the U.S. Public Domain. Caveat recorded on the page: some third-party photographs and graphics on USGS sites remain copyrighted. The Mineral Commodity Summaries world data tables are USGS-authored and carry no third-party notice.