Context

Context of Ice Age Floods National Geologic Trail; land adjacent to Walnut Canyon National Monument; amend the National Trails System Act; and including in the NPS certain sites in Williamson County, TN : hearing before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Ninth Congress, first session, on S. 206, S. 556, S. 588, S. 955, June 28, 2005
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