No, I haven’t finished my book. Time away from the keyboard is important, so what do I do? Go for a hike up Sumas Mountain, come home and write about the geology! I have had this field trip in my head for a while, and needed to share it. I did the hike back in early April with Doug McKeever and Eric Rolfs, but didn’t have my camera, so returned with Scott Linneman May 28. Click here to read the story of an audacious early 19th Century mining scam, and to learn about the geology on this short hike. You’ll also find a rare bonus- an exposure of the basal contact of the Chuckanut Formation, where it overlies the serpentinized ultramafite of Sumas Mountain.
Filed under: Chuckanut Formation, geologic structure, Geology field trips, mining, North Cascades geology, sedimentary rocks, strike and dip Tagged: | Chuckanut Formation, Geology field trips, Huntingdon Formation, Mining geology, northwest geology, Pleistocene deposits, Sumas Mountain, Ultramafic rocks, Unconformity