National Park Service Southwest Regional Office, also known as National Park Service Region III Headquarters Building, is an office building in Santa Fe, New Mexico. Designed by NPS architect Cecil J. Doty, it is a traditional adobe building, one-story except for a double-height entrance area, with exposed timber vigas and adobe bricks constructed on site by the CCC.The building contains an outstanding art collection, ranging from items done by members of Santa Fe's art colony in the 1930s to Pueblo pottery and Navajo rugs.