Rose Canyon, Salt Lake County, Utah. Photographer: Michael Vanden Berg
Step Mountain is aptly named for several resistant Tertiary-age andesite dikes that display exceptional horizontal columnar joints.
https://geology.utah.gov/wp-content/uploads/ugs-logo-large.png00Utah Geological Surveyhttps://geology.utah.gov/wp-content/uploads/ugs-logo-large.pngUtah Geological Survey2013-07-11 07:03:592016-08-10 16:42:49POTD July 11, 2013: Rose Canyon, Salt Lake County, Utah.