I've been there! My son and I hiked up there when we used to live there. Stayed at the cabin for a night, and then over to Devil's Punchbowl!
That lake is FFT, and the water, so clear and cold.
Where is Upper Dewey Lake? I wish people on this sub would post the city or the state where the picture was taken. A lot of times I see people mention the park or the lake and assume that the rest of us know where "Dewey Lake" exists. I am asking this question because next year I am planning on putting together a hiking trip vacation and I look through through the posts for inspiration!