The Deep Creek Mountains, officially the Deep Creek Range, are a mountain range in the Great Basin located in extreme western Tooele County and Juab County, Utah, in the western United States. The range trends north-south, (with a curl to the west at the southern end, 16% of range in White Pine County, Nevada), and is composed of granite in its central highest portion. The valley to the east is Snake Valley and to the west is Deep Creek Valley.