Rocks & Minerals - Utah Geological Survey

By: Lehi F. Hintze and Bart J. Kowallis This is a completely revised (with color added) version of the most widely used book on the geology of Utah in

Geologic History of Utah: A Field Guide to Utah's Rocks

NPS Geodiversity Atlas—Glen Canyon National Recreation Area

Glad You Asked - Utah Geological Survey

Utah Rockhounding Location Guide & Map – Rockhound Resource

Rockhounding near Delta, Utah for Topaz, Mahogany Obsidian

Rock & Mineral Collecting Sites - Utah Geological Survey

Actinolite – WGNHS – UW–Madison

Rock & Mineral Collecting Sites - Utah Geological Survey

The Rocks and Scenery of Camp Maple Dell, Utah County, Utah Utah

Did you know you can collect Utah's state gemstone at Topaz Mountain?