I am moving from Arizona to Olympic Valley just outside of Lake Tahoe. The Sierra's are a clean slate in terms of my geological knowledge. It's good to understand the ground under your feet. Thanks so much for this!

Great lecture with very useful graphics and diagrams, well explained, worth the time.

John Muir discovered evidence of Yosemite Valley glaciation. Mountains of California and My First Year in the Sierra are must reads

Crystal cave is in seq np

Not "discovered" by settlers, it was taken over by settlers for mining specifically Sonora, 1849.

Thank you, thank you, thank you!! I appreciate all of your hard work in creating these lectures and your willingness to share this information freely! Amazing :D

Thx for the lesson

❤very informative😊thanks

FYI there are no redwoods in the Sierra Nevada, just giant sequoias

I can't believe you got the part about discovery so wrong. Obviously these mountains were first discovered by Colombus, lol

This video is as great as the Sierra Nevada itself ! A++ . Thank you !

8:15 The Sierra Nevada wasn’t discovered by settlers it was home to many native people well before then.

@8:15, it's ok, this is a grown-up forum. The Donner party event is a historical event, well documented. They got stuck in a bad location during a bad winter but, they ran out of food. They had to eat the bodies of their dead because they couldn't hunt in those conditions. Awkward but straightforward. P.S. "they don't have a lot of vegetation up there, so...". People back then we not so concerned with salads or, getting their daily fruits and vegetables. I don't see them holding off on eating just because they don't have arugula hearts. Hell, I bet they never even heard of ranch dressing.

great job, i read the same books and this lady nailed it. now im going to bring sanity back to geology, no more floating continents and restless rock moving around like boats... no there's a reason why the mountains are moving around and it's not tectonic tectonic is an effect it's not the cause I'm bringing sanity back.

I built a tv tower above kings canyon

Recedence isn’t a word 😂😂 did u mean “recession?”😅