- Materials Act1947
Events/Law or policy · 1947
Materials Act
Law or policy, 1947; common varieties moved under it from 1955, United States.
What happened
The Materials Act of 1947 provides for the disposal of mining materials on US public lands, both saleable and leasable. Under it common varieties such as sand and gravel are sold rather than rented or royalty-bearing. From 1955 common varieties of sand, gravel, stone, pumice and cinders were taken out of the Mining Law and placed under this Act.1,2
Why it matters
It removed common-variety materials from the 1872 Mining Law regime.1,2
Story cards
Around the same time
- Materials Act
It removed common-variety materials from the 1872 Mining Law regime.1,2
Where next
Sources
- About Mining and Minerals US Bureau of Land Management
- Washington, D.C. (item Q61), coordinate location P625 Wikidata
From the Prospector Trails mining history dataset: each fact links to the source it was checked against. Figures are as the source gives them, in the money of their day. Not investment advice.
Keep exploring
Stories with these minerals


The world runs on rockThe ChipThe minerals inside every computer chip
The world runs on rockThe MindThe metal and power behind AIAll mining storiesThe world runs on rockAll mineralsMining by country
Cover photos from Wikimedia Commons: Super Pit, Kalgoorlie by Kgbo, CC BY-SA 4.0; Chuquicamata from the ISS by Alexander Gerst (ESA), CC BY-SA 2.0.