mosquito-genocide

I don't understand how granite mountains like the Sierra Nevada (or Mt Stuart?) are formed. I've heard people say they are the insides of old volcanoes. Does that mean there is a new Yosemite lurking under Mt Rainier and "we" just have to wait for it to erode away? Or does it also have to be uplifted by some kind of plate tectonics to become like the Sierra Nevada?

Are the awesome/picturesque ridges that the eastern Sierra Nevada (Mt. Whitney, Palisades Crest, Mt Humphreys, etc) is known for a product of the stuff that happens inside the volcano or erosion later on?

That's interesting. I've always thought it is crazy how sometimes granite gives you these really round domes (Yosemite, Squamish) and other times if gives you these crazy knife edge features (eastern Sierra)!

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Thanks!