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Oregon Historical Mining Information

Welcome to the Oregon historical mining information archive

Mineral Information Layer for Oregon-Release 3 (MILO-3) is a geospatial database that stores and manages information regarding Oregon's mineral occurrences, prospects, and mines

Sumpter Dredge No. 3. Photo taken circa 1995.
Sumpter Dredge No. 3, circa 1995.

Disclaimer: Mining sites are included for informational purposes only and should not be used to infer acceptable or permitted land use actions. Interested parties should contact their local land use authority to verify zoning and applicable land use ordinances. Respect the rights of private property owners. Understand that recreation in or around inactive mine sites is extremely dangerous and can result in serious injury or death. Stay out and stay alive! No warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The Oregon Department of Geology and Mineral Industries shall not be held liable for improper or incorrect use of the data described and/or contained herein. Data are not intended for site-specific investigations.



Phone: 971-673-1555