Probably a 2.5-star spot. Super clean, but in the middle of nowhere with nothing to do. Lots of pull-through spots with full hook-ups. Just off the I-5 freeway. Shares a wall with the freeway, so can be loud with traffic noise.
Spots are just driveways with very little space in-between. Many did not have picnic tables and only a few on the ends were near any grass. There is some grass on the ends of the rows and at the sides of the park. There's also a small strip-mall basically in the same parking lot, for better or worse.
If you're driving through and need a place to stay, this one is safe, clean, newer, and basic.
Not too far north of Vancouver, Washington and Portland, Oregon, the Tri-Mountain RV Park is clean and well maintained but right next to the I-5 freeway. The park literally shares its parking lot entrance with a Subway restaurant and all the spots are pretty much cement, but there are green areas on the ends of some of the streets and at the edges of the park. The mature trees throughout help give it a little bit of personality. There's also a large green area just outside the RV park. Not much to do here, but if you're looking for a place to spend the night that's easy on/easy off and not much hastle, this could do just fine.