Great spot, plenty of room for Big Rigs
This is my favorite dispersed site so far. Plenty of room for larger rigs, very close to a river and lots of woods to explore nearby. Close enough to Mt. Rainier NP and nearby towns for supplies. Vault toilets if needed, and the airstrip was only used twice in the 4 nights we stayed, i think (heard one mid-day, and saw another late morning).
There is a single-lane bridge when turning in that could be tricky for a motorhome that is towing, but not enough traffic to cause us any issues getting in. For larger rigs - take the second left (at a Y-intersection, and then keep to the left and you won't have any trouble getting in. Going to the right at the Y takes you to an area that big rigs might have trouble finding spots or turning around, but still doable.