The purpose of the hearing is to receive testimony on the following bills: S. 127, to amend the Great Sand Dunes National Park and Preserve Act of 2000 to explain the purpose and provide for the administration of the Baca National Wildlife Refuge; S. 327 and H.R. 359, to authorize the Secretary of the Interior to conduct a special resource study of sites associated with the life of Cesar Estrada Chavez and the farm labor movement; S. 868, to amend the Wild and Scenic Rivers Act to designate segments of the Taunton River in the Commonwealth of Massachusetts as a component of the National Wild and Scenic Rivers System S. 1051, to authorize National Mall Liberty Fund D.C. to establish a memorial on Federal land in the District of Columbia at Constitution Gardens previously approved to honor free persons and slaves who fought for independence, liberty, and justice for all during the American Revolution; S. 1184 and H.R. 1021; to direct the Secretary of the Interior to conduct a special resources study regarding the suitability and feasibility of designating certain historic buildings and areas in Taunton, Massachusetts, as a unit of the National Park System, and for other purposes; S. 1247, to amend the Weir Farm National Historic Site Establishment Act of 1990 to limit the development of any property acquired by the Secretary of the Interior for the development of visitor and administrative facilities for the Weir Farm National Historic Site, and for other purposes; S. 1304, to amend the National Trails System Act to designate the Arizona National Scenic Trail; S. 1329, to extend the Acadia National Park Advisory Commission, to provide improved visitor services at the park, and for other purposes; H.R. 759, to redesignate the Ellis Island Library on the third floor of the Ellis Island Immigration Museum, located on Ellis Island in New York Harbor, as the "Bob Hope Memorial Library"; and H.R. 807, to direct the Secretary of the Interior to conduct a special resource study to determine the feasibility and suitability of establishing a memorial to the Space Shuttle Columbia in the State of Texas and for its inclusion as a unit of the National Park System.