To amend the Valles Caldera Preservation Act to improve the preservation of the Valles Caldera, and for other purposes.

To adjust the boundary of the Barataria Preserve Unit of the Jean Lafitte National Historical Park and Preserve in the State of Louisiana, and for other purposes.

To designate the Ice Age Floods National Geologic Trail, and for other purposes.

To authorize the American Battle Monuments Commission to establish in the State of Louisiana a memorial to honor the Buffalo Soldiers.

To establish the Atchafalaya National Heritage Area in the State of Louisiana.

To reduce temporarily the royalty required to be paid for sodium produced on Federal lands, and for other purposes.

To establish the Arabia Mountain National Heritage Area in the State of Georgia, and for other purposes.

To commemorate the 60th Anniversary of the Trinity Test, the culmination of the Manhattan Project, and to honor the people who made it possible.

Recognizing the 100th anniversary of Mesa Verde National Park.

To authorize the Secretary of the Interior, acting through the Bureau of Reclamation and in coordination with other Federal, State, and local government agencies, to participate in the funding and implementation of a balanced, long-term groundwater remediation program in California, and for other purposes.