Sandstone, Lava, Shadows, and Light - St. George, UT
Posted by: 
bluesnote
N 37° 12.213 W 113° 38.432
12S E 265661 N 4120719
A historical marker geologic history of Snow Canyon at the visitor center.
Waymark Code: WMYX1H
Location: Utah, United States
Date Posted: 08/04/2018
Views: 0
"Transported by wind more than 183 million years ago, tiny grains of quartzite sand covered much of what we now call Utah. These sand dunes, up to 2,500 feet thick, eventually were cemented into stone. Burnt orange to creamy white in color, Navajo sandstone, the predominant rock in the park, is what remains of the ancient desert sand sea. Over time, water has cut and shaped the sandstone to form canyons. Approximately 1.4 million years ago, and as recently as 27,000 years ago, nearby cinder cones erupted, causing lava to flow down these canyons, filling them with basalt. This redirected ancient waterways, eventually carving new canyons. Look up to see lava-capped ridges that were once canyon bottoms. Removal of rocks and minerals is prohibited."
Marker Name: Sandstone, Lava, Shadows, and Light
Marker Type: Roadside
County: Washington
City: St. George
Group Responsible for Placement: Utah State Parks
Web link(s) for additional information:
https://stateparks.utah.gov/parks/snow-canyon/discover/
Addtional Information: Not listed
Date Dedicated: Not listed
Marker Number: Not listed
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Visit Instructions:
In your log, please say if you learned something new, and if you took any extra time to explore the area once you stopped at the historic marker waymark.
If possible please post a photo of you OR your GPS at the marker location.
Also if you know of any additional links not already mentioned about this bit of Utah history please include that in your log.