Geological Society of America - NEW in the GSA Store: Geologic Map of the Southeast Face of El Capitan, Yosemite Valley, California http://bit.ly/1pMyT9M El Capitan in Yosemite National Park, California, is one
![Dr Stacy Phillips on Twitter: "Geologists ⚒️ have worked with climbers 🧗♂️🧗♀️ to photograph rock textures and map the various different types of granite as they made ascents all over El Capitan! Dr Stacy Phillips on Twitter: "Geologists ⚒️ have worked with climbers 🧗♂️🧗♀️ to photograph rock textures and map the various different types of granite as they made ascents all over El Capitan!](https://pbs.twimg.com/media/D5-BbUIW4AAeDqw.jpg:large)
Dr Stacy Phillips on Twitter: "Geologists ⚒️ have worked with climbers 🧗♂️🧗♀️ to photograph rock textures and map the various different types of granite as they made ascents all over El Capitan!
![Danger Zones: The Nose - Yosemite National Park (U.S. National Park Service) - Search and Rescue: Lessons from the Field Danger Zones: The Nose - Yosemite National Park (U.S. National Park Service) - Search and Rescue: Lessons from the Field](https://www.nps.gov/yose/blogs/images/anam-DangerZones1web.jpg)