Duchesne ( doo-SHAYN) is a city in and the county seat of Duchesne County, Utah, United States. The population was 1,690 at the 2010 census, with an estimated population of 1,770 in 2018.
Duchesne is located just west of the junction of the Strawberry and Duchesne rivers in the Uintah Basin of northeastern Utah. The Duchesne River drains the southwest slope of the Uinta Mountains, and the Strawberry river drains the eastern slopes of the Wasatch Range and is connected to Strawberry Reservoir. The two rivers combine at Duchesne, and the Duchesne River continues east to join the Green River at Ouray, Utah.
Native stands of cottonwood trees and willows grow along the river banks, while sagebrush and rabbitbrush fill the un-irrigated bench tops. Alfalfa is the main cultivated crop of farmers in the area.
Via highway, Salt Lake City is 114 miles (183 km) to the west, Vernal is 58 miles (93 km) to the east, and Price is 54 miles (87 km) to the south.
According to the United States Census Bureau, the city has a total area of 2.5 square miles (6.5 km2), all of it land.
Duchesne has a cold semi-arid climate (Köppen BSk).
18 September 1776 The Dominguez–Escalante Expedition came from the east where they crossed Blue Bench and descended into the valley north of the present-day town of Duchesne. "We ascended a not very high mesa [Blue Bench] which was level and very stony, traveled about three quarters of a league including ascent and descent, crossed another small river [Duchesne River] which near here enters the San Cosme (Strawberry River), named it Santa Caterina de Sena, and camped on its banks." "Along these three rivers we have crossed today there is plenty of good land for crops to support three good settlements, with opportunities for irrigation, beautiful cottonwood groves, good pastures, with timber and firewood nearby."
1822–1840 French Canadian trappers Étienne Provost, François le Clerc, and Antoine Robidoux entered the Uintah Basin by way of the Old Spanish Trail and made their fortunes by trapping the many beaver and trading with the Uintah tribe.