GPS data for this:
Entrance on the road just after the tunnel: N37°12'48,3" - W112°56'26,4"
Viewpoint, end of the trail: N37°12'47,7" - W112°56'44,0"
top 1: N37°13'04,1" - W112°56'41,4"
up 2: N37°13'08,5" - W112°46'46,9"
down intermediate point 1: N37°13'15,5" - W112°56'30,8"
down intermediate point 2: N37°13'17,5" - W112°56'17,4"
-- then descend into the lower wash canyon and follow it to the right until you reach the road.
The road is reached at: N37°12'55.5" - W112°56'08.7"
We now either go back on the road to the parking lot,
or cross the tunnel and follow the Wash downhill to the parking lot,
which is the nicer way, because you still pass through the slot canyon!
All in all a very excellent tour with great views - and you don't meet anybody!
All pictures have the GPS data in the Exif.