Yesterday Shelby, Kris, our three dogs and I went walking along the almost dry bed of Detroit Lake. We started at Hoover Campground and walked upstream next to the Santiam River which feeds Detroit Lake.
The travel was mostly smoothed cobblestones with some sand as the lake level is extremely low due to lack of rain and snow melt.
Below you can see the bed of Detroit Lake. The post behind Kris is a No Wake sign.
At this point we should be 20 feet underwater. 🙁
The dogs were allowed to run off leash as we were the only ones out there. When we did see others we leashed until past them.
The sheer diversity in the rocks we walked on was amazing. I took pictures of a few for this post. The cobbles ranged from granite to volcanic to sandstone.
These green stones were interesting because most of them were very brittle. They were green all the way through and I have no idea what the composition is.
Here you can see sandstone that was laid down with various layers of a darker material. Most likely due to ash or dust in the sky. Could also be from a flash flood event where this rock was formed higher up a bank or shore where only silt settled out.
There were also a number of these types where it was a compressed mix of larger pebbles and sand. Very interesting!
The below conglomerate has bits of granite and sandstone mixed inching you can see at the lower right of the rock as the darker spot.
Here is another sandstone rock that had two different colors of sediment compressed into it. There were a number of these out there.