US Department of the Interior @Interior
One of the many duties @OSMRE is charged with is to provide local partners and private industry with the best geographic data on old mines. If you have a legacy mine map you would like to donate, learn more about @minemaps acquisition procedures here: https://t.co/uSZVyGaQLU https://t.co/ZdcWcY4aRI — PolitiTweet.org