My wife and myself were there in late july '08. The park is located in the pines outside of Phillipsburg, MT. We were traveling in an rv towing a vechicle. No crowds, great campsite (cabins, rv spots, tenter spots, hot tub, fire pits, etc), business done over the phone or in person.
Friendly atmosphere and love the area. Nice place to stay and close to the creek. But watch out for the local wildlife. The moose was cool to watch and the eagles were interesting.