Last minute surprise turned out great
Started on our way home from glacier national park at midnight. We couldn’t find anything that was open (including hotels). Randomly stumbled upon this campsite at 2:00 am.
Luckily the sign read: IF YOU ARRIVE AFTER 9:00 PM PLEASE SET UP CAMP AND WE WILL ACCEPT PAYMENT FIRST THING IN THE MORNING. THANK YOU.
Flat, grassy campground with some nice little trees for some shade. 6 tent spots (I’m sure they would accept more, plenty of room). Other spots for RVs. Nice clean bathrooms. Shower was good too, except the lack of curtains. Bring your own soap. They have a massive dumpster to leave all your trash in.