https://geology.utah.gov/glad-you-asked-glacial-striations-and-slickensides/
Glad You Asked—Glacial Striations and Slickensides - Utah Geological Survey
Aug 10, 2016 - What are those groovy rocks and how did they get that way? Carole McCalla On a hike around Lake Blanche below Sundial Peak in Big Cottonwood Canyon, a group of...
utah geological surveygladstriationsslickensides