Ashley Creek (Uintah) has two forks. The South Fork has its origin at Lake Wilde near Leidy Peak and flows southeast. The North Fork begins at Hacking Lake just northeast of Leidy Peak. The two meet several miles southeast near Taylor Mountain and Forest Road 515. The stream then continues into Ashley Valley where some of its water is distributed by canal to the Steinaker Reservoir. The rest of the water flows, now as part of the Vernal Central Utah Project, per pipeline to the communities of Vernal, Naples and Maeser. The creek was named for General William H. Ashley who introduced fur trappers into the area.

See: Utah Place Names, John W. Van Cott.