I have to wonder what river it washed down, and how long ago. Was it a victim of a flood, or did it just one day fall in the river due to steady erosion?
It's a good picture, and if you look at it right, it provokes thought. Which makes it a great picture.
There are a few rivers north that dump into the inlet, but also rivers on the other side, and to the south. the tide is pretty strong it could have even come up from Kodiak Island or around the bend from Seward or one of the other locations along the shores.
I do enjoy seeing things that have character in them.
The river of broken dreams judging by the sorry state of it.