My husband, daughter, and I camped at Summit Lake over the weekend 7/1/2023 - 7/2/2023.  This is one of my all time favorite locations. We drove in from I-5 through Oakridge Highway 58 to FS Road 21 to FS Road 2154 to FS Road 398.  Total distance once you get off Highway 58 and onto FS Road 21 is approximately 40 miles.  If you are here during the week, it is highly likely to have the entire lake to yourself.  We don't usually camp in the campground, rather, we camp in one of the primitive sites along the west shore of the lake.  Our site was right on the lake, had a nice rock fire pit, and offered breathtaking views of the lake and surrounding buttes.  The only complaint we had was the mosquitos.  We used an entire bottle of bug spray and I still walked away with dozens of welts.  We built a fire that seemed to push the mosquitos out but drew in the noseeums.  Very peaceful location, breathtaking views, and great kayaking and SUP.