The specific location given is about 4.5 miles in from hwy 16, and there are numerous areas to set up your camper on the way in. The farther you go, the more private it is. The dirt roads are well maintained, but still a fair amount of rock, so slower speeds are safer. The entire Bighorn NF area is saturated with dispersed camping.
The limit is 2 weeks, and Ranger request that you move about 5 miles, if you want to stay longer. There are locals who come to ride their dirt bikes and ATV's in the area, more so on the weekends, but has not been too much of a nuisance. There is plenty of deadwood in the areas to gather as firewood, and Canyon Creek has a brisk stream of water flowing. Satellite images show it dry.
Elevation of this area is about 9500', so temps are cool and comfortable even in August.
Very dark and clear night sky is great for star gazing. And there is a park dump/fresh water station a very short distance away. Not sure about other cell services, but Zero T-mobile signal, but I had just purchased the Starlink system before heading this way and I'm getting high-speed internet and Wi-Fi calling, in the middle of nowhere! This is my favorite boondocking area so far. Note, this area is suitable for most Big Rigs