Antelope Wash is around a five mile climb from Blake Ranch Road up to Wild Cow Campground. The first mile is between a 10-12% grade. After an S-turn, the trail reduces to about a 4% grade as it winds up the mountain.
This next climb tops out at a cattle guard. This is a nice place to snap some pics, catch your breath and enjoy the views. You'll now have a very short breather for about 0.3 miles. Now, there is a 6% grade climb that leads you to a four-way intersection.
A right turn takes you to Flagmine Road and back to civilization, while a left takes you to Upper Moss Wash Trail Route 7200
and straight you'll end up in Wild Cow Campground.