Lyons Formation

Lyons Sandstone
Stratigraphic range: Middle Permian

Buff and pink rocks typical of The Lyons Formation seen on the right at Roxborough State Park near Littleton, Colorado
Type sedimentary
Underlies Lykins Formation
Overlies Fountain Formation
Thickness 50-220 ft
Lithology
Primary sandstone, conglomerate
Location
Region Denver Basin
Extent Colorado, Wyoming
Type section
Named for Lyons, Colorado

Lyons Sandstone is a geological layer formed during the Paleozoic Era, Middle Permian Period about 250 million years ago. This layer is also referred to as the Lyons Formation. It is the result of fine-grained quartz sand dunes compressing into sandstone. This layer is visible along the Front Range of the Colorado Rocky Mountains.

The stone quarried from this layer was used to build many buildings on the University of Colorado - Boulder campus.[1]

References

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