Ridge at Gregory Nat Bridge
Parked at the land barrier partway up Fiftymile Creek canyon, at the location of Gregory Natural Bridge. The bridge itself is just a few feet underwater at the top right, at the bit of cliff in the shade. If the lake level is below roughly I'd say 3540 feet (the lake level on this day was 3562 feet), then you'd probably be able to see and also paddle through Gregory Natural Bridge. See that small boat in the top right in the shade? They know the truth!