Dugway Proving Ground (DPG) is a US Army facility located approximately 85 miles (140 km) southwest of Salt Lake City, Utah in southern Tooele County and just north of Juab County. It encompasses 801,505 acres (3,243.576 km sq, or 1,252.352 sq mi) of the Great Salt Lake Desert, an area the size of the state of Rhode Island, and is surrounded on three sides by mountain ranges. It had a resident population of 2,016 persons as of the 2000 census, all of whom lived in the community of Dugway, Utah, at its extreme eastern end. The name “Dugway” comes from a technique to dig a trench along a hillside to keep a wagon from tipping.
The transcontinental Lincoln Highway passed through the present site of the Dugway Proving Ground, the only significant section of the old highway closed to the public. At least one old wooden bridge over a creek still stands.