Abstract

The first thing most visitors to Quail Creek State Park notice, apart from the improbably blue and refreshing waters of the reservoir itself, are the brightly colored, layered rocks of the surrounding cliffs. In fact, Quail Creek State Park lies astride one of the most remarkable geologic features in southwestern Utah. The park lies cradled in the eroded core of the Virgin anticline, a long upwarp of folded rock that trends northeast through south-central Washington County. The fold is breached by erosion along its crest, creating a window into the geologic past. Famous for its geology, the park is also infamous for the 1989 catastrophic collapse of the Quail Creek south dike, which unleashed a torrent of water and caused millions of dollars of damage.

Highlights

  • The first thing most visitors to Quail Creek State Park notice, apart from the improbably blue and refreshing waters of the reservoir itself, are the brightly colored, layered rocks of the surrounding cliffs

  • The park lies cradled in the eroded core of the Virgin anticline, a long upwarp of folded rock that trends northeast through south-central Washington County

  • Famous for its geology, the park is infamous for the 1989 catastrophic collapse of the Quail Creek south dike, which unleashed a torrent of water and caused millions of dollars of damage

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Summary

Utah Geosites

Cover Image: View north at a brightly colored hillside of Shnabkaib (TRms), upper red (TRmu), and Shinarump (TRcs) strata just north of Utah Highway 9, immediately south of Quail Creek State Park

Presidents Message
INTRODUCTION
Virgin Anticline
Moenkopi Formation
CATASTROPHIC FAILURE OF QUAIL CREEK SOUTH DAM
Full Text
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