Names
- Smith, Margaret Chase, 1897-19951
- U.S. Nuclear Regulatory Commission2
- Udall, Morris K.3
- United Mine Workers of America2
- United States, National Park Service3
- United States. Army. Corps of Engineers.1
- United States. Clean Air Act1
- United States. Congress. House. Committee on Appropriations. Subcommittee on Interior Department2
- United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Health and the Environment1
- United States. Congress. House. Committee on Interior and Insular Affairs4
- United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Energy and the Environment1
- United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mining and Natural Resources7
- United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks1
- United States. Congress. House. Committee on Public Works1
- United States. Congress. House. Committee on Public Works and Transportation2
- United States. Congress. House. Committee on Science and Technology. Subcommittee on Natural Resources and Environment1
- United States. Department of the Interior1
- United States. Environmental Protection Agency20
- United States. Federal Emergency Management Agency1
- United States. General Accounting Office2
