Stumped in Seattle

I had the pleasure of visiting Seattle a few weeks ago for work, and took an extra day to explore outside the city while I was there. I rented a car and drove about an hour out to Rattlesnake Ridge, a hiking trail. After a while, I came across this amazing area with graying, almost anthropomorphic tree stumps alongside an old trail, adjacent to a small lake. I'm sure Temple of the Dog, Green River or Tad shot something here at some point!