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 The Truth About Vale S.A. in Minas Gerais: Commitments and Abuses Earthworks 2025 Campaign Plan Protecting Our Land, Water, and Culture: How to Use Mineral Withdrawals to Safeguard Public Lands from Mining Earthworks 2023 Annual Report