The flow of water hidden in the shadows at the bottom of this photo is the Oak Grove Fork of the Clackamas River. The tributary feeds Timothy and Harriet Lakes (how odd that I haven't posted any photos of Harriet Lake! I will have to remember that on a day when I have nothing new to post and get something out of my archives. It's a beautiful spot!)
I was more focused on the sky in this photo though. The sun (which I had not gotten a glimpse of in days, but came out briefly) was just going down behind the tree line.