Sego, ghost town in Grand County, Utah, United States

Sego is a ghost town in Sego Canyon, about 5 miles north of Thompson Springs in Grand County, Utah. It was a coal mining town inhabited from about 1910 to 1955. Remains include a concrete foundation slab with a dark opening beneath, a collapsed wooden structure with weathered posts, and the grade of the Ballard & Thompson Railroad.

Henry Ballard found an exposed anthracite vein in Sego Canyon in 1908 and quietly bought the land, starting the coal camp of Ballard. B.F. Bauer's American Fuel Company took over in 1911, built a coal washer and the Ballard & Thompson Railroad, and renamed the town Neslen, then Sego in 1918 for the sego lily. Mining ran until 1947, and a 1949 fire destroyed the main machinery.

Visitors can explore the ruins on foot, though expect rough terrain and minimal facilities. Checking road conditions beforehand is wise, as accessibility changes with seasons.

The Ballard & Thompson Railroad crossed the canyon stream thirteen times in its five-mile run to the mine. When the line was abandoned in 1950, the mine owners built a truck ramp at Thompson to load coal straight into Rio Grande cars; the ramp and three single-span trestles survive, though the trestles are unsafe to cross.