Cox Benchmark is a Drive up summit near Lakeview OR.
There is a small RF site on top, but we experienced no interference from it.
The last bit of road, approximately one mile and 500 feet of gain, is a bit rough and overgrown in places. We drove it in a Rav4, but you could park near the start of it at 42.39478, -120.36527. This would avoid needing higher clearance and northwest pin stripes.