We had such a great conversation with Dr. Andrew Calvert, Scientist-in-Charge of the California Volcano Observatory, that we decided to run it back one more time.  Mount Shasta is clearly a favorite of Dr. Calvert's, and is  famous location for hiking, climbing, and skiing.  However, it is not a National Park despite the best efforts of the famous John Muir, and is not a true tourist destination.  When thinking about visiting Northern California, don't forget to check out Lassen Volcanic National Park to experience more amazing volcano geology!  Also, check out our previous discussion with Dr. Calvert about Shastina, the spunky little sister to Mount Shasta.  Shastina presents something of a geological conundrum as it doesn't quite fit with the rest of the Cascade volcanoes.  Here is a link to Dr. Calvert's research profile, and a short bio:EducationPh.D., University of California – Santa Barbara                     Dissertation: Metamorphism and exhumation of mid-crustal gneiss domes in the Arctic Alaska Terrane M.S./B.S., Stanford University (both degrees conferred June 1992)Thesis: Structural Evolution and Thermochronology of the Kigluaik Mountains, Seward Peninsula, Alaska  —————————————————— Instagram: @planetgeocast Twitter: @planetgeocast Facebook: @planetgeocast Youtube: https://www.youtube.com/channel/UCJ_A82nOMu0nIvZto6zMPqgEmail: planetgeocast@gmail.com