Category: Geology

  • (Video) Behind the Scenes of YNN Feature “Glaciers”

    (Video) Behind the Scenes of YNN Feature “Glaciers”

    Go behind the scenes with the Yosemite Nature Notes crew as they explore Yosemite’s glaciers.

  • Labor Day Weekend Rockfall Startles Visitors

    Labor Day Weekend Rockfall Startles Visitors

    Hey it was just a few rocks who were tired of hanging around.

  • Photo of the Day: Glacial Cirque Mount Hoffmann by Jeffrey Trust

    Photo of the Day: Glacial Cirque Mount Hoffmann by Jeffrey Trust

    Who says geology can’t be beautiful?

  • There’s More to Yosemite than Just Granite

    So I’m sure most of you think geology is kind of boring. Maybe you tried a class in college and dropped after you realized you’d have to realize all those minerals. When I was in college I was lucky enough to find a professor who made geology fun and exciting. The great news is he’s…

  • 52 Documented Rock Falls in 2009

    Recorded rockfalls in Yosemite National Park from 1857-2009. Courtesy NPS. Most of the time you don’t hear about a rockfall in Yosemite unless it closes a road or hotel or someone is in the wrong spot at the wrong time. @YosemiteScience posted a link to the great new rockfall page on the NPS website explaining…

  • A Box of Rocks

    Because I studied geology I found this particularly amusing. I’m sure Garry will get a laugh out of it if he hasn’t already seen it. @Squawky: When most people move, friends ask “how much heavy furniture?” … When geologists move, they ask “how many boxes of rocks are there?” (via @jeffreytrust)

  • One Mans Lake is Another Mans Text Book

    Most visitors to Yosemite see Siesta Lake as a picturesque spot to stop and stretch your legs along the Tioga Road but Professor of Geology, Garry Hayes sees it as a tool to help students understand glaciation in the Sierra. Photo by

  • Shaking, Rattling and Rolling

    Keeler, CA – Now pretty much a ghost town is once again shaking and rattling as a nearby fault has suddenly become active. Photo by Matthew High. In 1872 John Muir was awakened in his cabin by a rumble in the ground and the sound of rocks pouring from the walls of Yosemite Valley. He…

  • More Falling Rocks in Yosemite

    Looks like there was another rock slide this morning, this time behind the new housing just west of Curry Village between 5 and 7 a.m. No injuries or damage were reported. Merced Sun Star: Campers and staff at Yosemite National Park woke to the rumblings of a small rock fall this morning in the Curry…

  • Smashed!

    YosemiteTrekker has a great write up and some great photos from yesterdays geologic event behind the Ahwahnee. Ok they got really cool photos of smashed stuff from the rock slide! Check it out: Yosemite Trekker.