Coordinates: 44.60622, -103.90540 We only stayed one night but it was quiet from other people but did hear elk rutting at night! Super cool. Pack in and pack out. The only reason I gave it 4 stars instead of 5 is because while it is National Forest the spots for dispersed camping are very limited because there is a lot of privately owned land so please be aware when picking a spot. It does back up to Wind Cave which is incredible.

There were multiple pull off dispersed camping areas all along the Mt. Roosevelt road. The road is easy to drive if coming off the CanAm Hwy side of the mountain. Walking distance to the Roosevelt Friendship Tower hike which is highly recommended. Tons of bees in the wildflowers but they never bothered us. Pack in and pack out! Some traffic driving along the road but never overwhelming and quiet at night. Great base to visit Deadwood, Lead, Spearfish Canyon, and Devils Tower

Dispersed Camping off the main road thru Custer State Park that is National Forest. Turn on the road that marks the Bob Marshall Camp. You pass a water treatment area and go thru the gate. It is open to vehicles in the summer and equestrian and hike in during the winter. Road is rough but was passable in our truck. We towed in a small teardrop but I wouldn't recommend a large rig. There are several areas to set up camp but pack in and pack out! No water sources spotted so bring enough in with you (didn't even see any water for filtering). Saw a preexisting stone fire pit from past campers too. Super quiet and near all the great things of Custer. We did experience biting flies. Coordinates: 43.7851324, -103.5041771