Quote Originally Posted by Foy View Post
I haven't tried to look up the stratigraphic section for NW Colorado-NE Utah, but the thinly-veiled hint regarding "Jurassic" leads me to guess it's the Dinosaur National Monument (Nat Park?), which I think makes the river the Yampa, or is it the Green? I'm eating lunch with one hand and typing with the other, while clients wait for me up front, so I can't do any of my own homework at the moment.

Funny, both AZBuck and myself, present and former professional geologists, respectively, did a "drive by" under Kestrel's bio in order to find out just who this new geologist in the forum might be.

Cool stuff, Kestrel. I like it.

Foy
Yes, it's the Canyon of the Yampa in the Colorado part of Dinosaur National Monument. To get a sense of scale, it helps to know the trees along the river are cottonwoods.

I am a retired engineer, not a geologist. Most of what I know about geology comes from reading the Roadside Geology books during road trips. Knowing what the layers are makes the scenery even more interesting.

When Mark commented that the rock looked like Colorado National Monument, I just had to look it up and find out.