![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!
![El Capitan Granite Rocks, Known for Breathtaking Climbing Routes,view from Yosemite Valley, California, USA. Stock Image - Image of landmark, mountains: 172487237 El Capitan Granite Rocks, Known for Breathtaking Climbing Routes,view from Yosemite Valley, California, USA. Stock Image - Image of landmark, mountains: 172487237](https://thumbs.dreamstime.com/z/el-capitan-granite-rocks-known-breathtaking-climbing-routes-view-yosemite-valley-california-usa-near-landmarks-el-capitan-172487237.jpg)
El Capitan Granite Rocks, Known for Breathtaking Climbing Routes,view from Yosemite Valley, California, USA. Stock Image - Image of landmark, mountains: 172487237
![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)
Danger Zones: The Nose - Yosemite National Park (U.S. National Park Service) - Search and Rescue: Lessons from the Field
![Two climbers fall to their deaths from El Capitan rock face in Yosemite National Park | The Independent | The Independent Two climbers fall to their deaths from El Capitan rock face in Yosemite National Park | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2018/06/03/16/el-capitan-yosemite.jpg)
Two climbers fall to their deaths from El Capitan rock face in Yosemite National Park | The Independent | The Independent
![Two men free climbing a big wall route on El Capitan in Yosemite National Prk in the Sierra Nevada Mountains, California Stock Photo - Alamy Two men free climbing a big wall route on El Capitan in Yosemite National Prk in the Sierra Nevada Mountains, California Stock Photo - Alamy](https://c8.alamy.com/comp/H3EFP2/two-men-free-climbing-a-big-wall-route-on-el-capitan-in-yosemite-national-H3EFP2.jpg)