From Las Vegas:

Exit I-15 at Little field or Beaver Dam (Arizona Exit 8). Head North on Old Highway 91 for 13.3 miles, turn left or West for 10 miles to the Big Cottonwood Game Ranch. Watch for the signs.

From St. George:

Follow old US-91 up and over Utah Hill to the 10 mile sign. (NOT mile marker 10) There is a Large cliff on left. Stay on main gravel road and watch for the signs.