75 miles SW of Tucson. From I-10, take exit 302 heading south on Hwy-90. Go south about 35 miles to Ft. Huachuca, which is next to Sierra Vista. When you reach Ft. Huachuca, use the 2nd gate, which is the Buffalo Soldier (Main) Gate. Go straight - when passing water tower move to left lane. Make a U-turn at first left and get into right lane. At stop sign go straight 1 mile. GCRVP will be on your left. Watch for oncoming traffic as you turn as you are at the crest of a hill.