WASHINGTON COUNTY HISTORICAL SOCIETY (Washington County, Utah)
GEOLOGIC HISTORY OF WASHINGTON COUNTY
REFERENCESWikipedia article on the Geology of the Zion and Kolob canyons area
The Geology of Quail Creek State Park
by Robert F. Biek
Geology of the Hurricane Vicinity
Pages 3-9 in "Selected Topics Related To Hurricane, Utah"
Written and/or compiled by Victor Hall, 2003.