Officials Mark Valles Caldera's Addition To Park Service - The Associated Press
A sprawling parcel of land in northern New Mexico that's home to vast grasslands and one of North America's few super volcanoes is now part of the National Park Service.
U.S. Interior Secretary Sally Jewell, members of the state's congressional delegation, tribal leaders and others are gathering at Valles Caldera National Preserve on Saturday for a celebration to mark the transition.
The preserve is located in the Jemez Mountains, just west of Los Alamos.