Map - Oregon Obsidian Sources
R
Interesting map from the Obsidian Studies Laboratory. There are apparently a couple of sources in the Clackamas, I'm surprised thought it was mostly basalt.
http://www.obsidianlab.com/image_maps/map_obsidian_oregon_map1.pdf
B
Rho Ridge and Lemiti Creek obsidian eh? Got a new reason to go explore that area in the future.
D
What's the Clackamas River doing up in Hood River County?
Map seems off. Or needs explanation.
Log in to reply.