This primitive campsite is located along the middle fork of the Powder River west of Kaycee, Wyoming. I would suggest an AWD or 4WD vehicle to reach the site. This area of Wyoming is called Hole-In-The-Wall country, and Butch Cassidy and the Wild Bunch used to hide out in the vicinity. There are also some very nice pictographs nearby.
The campsite is free with a vault toilet and no other amenities -- no potable water, no wood, and no trash pick up. Haul out what you haul in. It can get very hot and windy here in the summer. So much so that I cut a two night trip short by one night. You have access to the middle fork of the Powder River, but it's about 800 feet below you as the campsite is on a canyon bluff.