We set up at the first big pull-out (42.529808, -120.233808), on top of a pile of gravel. The view was amazing and just what we needed.
If we only had an expedition vehicle, like GXV builds, then we could have gotten to a much sweeter place; see picture below.
The noise from the highway was minimal, just the occasional truck using engine brakes. We initially came here, because we wanted to use our canoe some more, but decided against putting out canoe in the lake… there is a lot of bird poop and not much to explore.