I came across this call for volunteers in a Ghost Town in Montana today. You got to stay for free in a rustic cabin with a stipend in exchange for volunteering. And possibly ghosts!!! Obviously, this one has long since been filled:

Even though this is a pipe dream for me anyway (because mortgage & responsibilities) I went down the rabbit hole until I found the volunteer postings for these agencies. LOTS of volunteer opportunities in some gorgeous parks that provide a campsite or RV/Trailer hookup in exchange for 20~30 hours a week of service for a couple of weeks to the whole summer. If not for us lovely GTers, but maybe for some of you that have pop~up trailers and some driving age teens or college kids.

My personal wish would be Montana :)

Just click on a state and see what’s up. http://www.volunteer.gov