We stayed in the entrance to this area for one night. To be honest, we aren't sure if it was allowed but there were no signs that said we could not. The road was too muddy to proceed so we camped right off the highway in the entrance to the park. We later found out that there IS a State Park near by and requires a $15 fee BUT you CAN park outside the park for free. We wouldn't recommend doing that for more than a night though. We don't have any pictures as we arrived in the dark and left early.
AT A GLANCE
Location: 39.284783, -119.241982
Length We Stayed: 1 Night
Solitude: No other RVs - Not entirely sure we were in the right spot!
T-Mobile Coverage: some
Time of year we stayed: February