Hughes County Courthouse. Hughes County Courthouse. South Dakota State Historical Society. The Hughes County Courthouse was designed in the Public Works Administration Moderne style with Art Deco features by the architects Hugill and Blatherwick and constructed by the Henry Carlson Company, all out of Sioux Falls.
Moab is located in southeastern Utah, just 4 miles south of the entrance to Arches National Park, and 30 miles east of Canyonlands National Park.
Utah History Encyclopedia. The Founding of Moab. Moab is the county seat of Grand County and a regional center of southeastern Utah. It is located near the east bank of the Colorado River on the west side of the 12,500-foot-high La Sal Mountains in a valley fifteen miles long and three miles wide within the heart of the Colorado Plateau.