Golden Trout Creek, California, USA

Groundhog cinder cone in the Golden Trout Creek volcanic field, breached to the NE.  Image courtesy Rick Howard, 2002 via USFS and Smithsonian GVP

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Lassen Volcanic Center, California

Skyline above timberline of the Lassen dome field.  Major domes visible.  Cinder Cone is in the foreground, the most recent feature.  Lassen Peak in the center background.  Other recent domes labeled.  Image courtesy Lassen Volcanic Center, USGS

Splitting North America – The Walker Lane – Part 2 – The Volcanic Fields

 

Schematic of Long Valley Caldera and surrounding volcanic structures. Relative locations of all three California calderas along the Walker Lane are depicted in previous images. Image courtesy Indiana.edu. http://www.indiana.edu/~sierra/papers/2010/jarosinski.html

Splitting North America – The Walker Lane – Part 1 – The Tectonics

Location of Walker Lane. San Andreas Fault System is depicted in red running from the lower right to the upper left of the image. Image courtesy Carlson et all. https://pubs.geoscienceworld.org/gsa/geosphere/article/9/6/1530/132671/kinematics-of-the-west-central-walker-lane