This proved a convenient spot to connect with some friends who were traveling through the area.  In the pouring rain (early May) there were enough mud puddles in the roads that others had recommended here.  So, we stayed a quick overnight in the parking lot to the Badlands Rock trail heads.  No one else there all night and a few hikers came in the next morning.  We took advantage of a nice hike and then walked around other dispersed camping sites along this gravel road.  There were several spots that looked pretty cool including one here:  

43°57'00.5"N 121°01'02.4"W

Strictly dry camping.  Likely hot and dusty in the summer with OHV's in the area, but the wide expansive views were lovely!