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MILO - Mineral Information Layer for Oregon

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What is the Mineral Information Layer for Oregon?

small map of Oregon showing MILO-3 data points; points color coded by type of occurrence: aggregate, coal, industrial minerals, metals.

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. New for release 3 is more point data and the association of large-format mine maps and county historical records with MILO points.

  • What can you do with the MILO online map?
    • See point information and associated large format maps and historical county mining records
    • Filter data two ways: By filter widget | By attribute table

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. This disclaimer applies both to individual use of the data and aggregate use with other data. We also urge you to pay careful attention to the contents of the metadata file associated with these data and to the compilation process and limitations described therein. 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