We are looking to find some help/experience in boondocking Black Hills SD. We run a Momentum bumper pull and plan on many days of OHV time. Searched the forum and haven't seen any posts about good areas with unimproved dispersed camping spots to slide a smaller TT into. We will be bringing friends with their own trailer as well. Badlands WY would be OK too as they say there are 650 miles of off roading in the area. Any help?