At the valley's northeast, Deep Creek turns east, then almost due north into Idaho, meeting the unincorporated community of Stone and the south border of the Curlew National Grassland.

Adjacent to Stone, upstream and south is the townsite of Snowville, Utah on Interstate 84, which traverses the valley diagonally from the northwest (Idaho) by southeast.

The first recorded white men were Peter Skene Ogden's large party of trappers that camped on Deep Creek on December 27, 1828.

[2] Some of the discharged members of the Mormon Battalion, on their way home from California to Salt Lake City on September 18, 1848, camped on Deep Creek and also in a cave 1 mile (1.6 km) east called Hollow Rock.

Settled at the direction of Brigham Young and named in honor of Lorenzo Snow: an apostle at the time, but later to become the 5th President of the Church of Jesus Christ of Latter-day Saints 1898–1901.