Casa Grande Ruins National Monument Boundary Modification Act of 2020

Casa Grande Ruins National Monument Boundary Modification Act of 2019 This bill authorizes the Department of the Interior to acquire specified private or state lands or interests in land from willing sellers in order to expand the boundaries of the Casa Grande Ruins National Monument. As consideration for the acquisition of the lands, unless such lands are donated, Interior must (1) pay fair market value; or (2) convey to the land owners federal lands, interest in federal land, or any other federal asset of equal value located in Arizona. Two additional parcels of land are also to be included in the Casa Grande Ruins National Monument. One parcel of 3.8 acres is currently being administered by the Bureau of Land Management. The other parcel of 7.41 acres is currently being administered by the Bureau of Indian Affairs (BIA) and is exchanged for 3.5 acres currently being administered by the National Park Service. The land transferred to the BIA is to be used for the San Carlos Irrigation Project. Interior may enter into an agreement with Arizona to provide for cooperative management of approximately 200 acres of specified state trust lands.