You'll have to do a lot more work these days to get the hell away from other people in Montana, but IT IS still possible. We just have to adjust our destinations and find legal lands or State Parks that aren't at the top of everyone's list.
The Institute for Tourism and Recreation Research at the University of Montana recently polled people across all Montana counties on the issue of State Parks.
Montana Fish, Wildlife and Parks continues a very popular campsite reservation program, enabling families to have a guaranteed space at many of Montana's state parks.