Half Dome as viewed from Glacier Point, Yosemite National Park, rises more than a kilometer above the valley floor. The granitic rocks that form Half Dome and other spectacular Park features represent unerupted magma later exposed by deep erosion and glaciation. (Photograph by Carroll Ann Hodges, USGS.)

"Plate tectonics and people"

URL: https://pubs.usgs.gov/publications/text/Half_Dome.html
Last updated: 05.05.99
Contact: bhanks@usgs.gov