Back to the resource library Udall Bill Revenue Estimate February 26, 2003 Author(s): Udall Bill Revenue Estimate Download How the Abandoned Hardrock Mines Reclamation Act would fund clean up of abandoned mines on a state by state basis. See All Related Resources Protecting Our Land, Water, and Culture: How to Use Mineral Withdrawals to Safeguard Public Lands from Mining Earthworks 2023 Annual Report Comments on Texas’s implementation of EPA’s Emissions Guidelines, 40 CFR Part 60, Subpart OOOOc, for existing crude oil and natural gas facilities Comments to Colorado’s Energy and Carbon Management Commission on Produced Water