examiner.com

As it turns out, the limping squirrel idea (see earlier article) wasn’t too far off in guessing what animal made the tracks on the stones in Memory Grove’s sidewalk. According to University of Utah student Tracy Thompson, the tracks were most likely made during the early Jurassic period, about 190 million years ago.  Tracy, and Jim Davis of the Utah Geological Survey, helped to track down relevant information such as the probable origin of the rocks – from a quarry in the Wasatch Front, above Red Butte Gardens or near Oakley. Tracy suggests they are from the Nugget formation, a northern relative of the Navaho red rock formations so prominent in southern Utah, as in Zion Canyon, and Arizona.

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