Gem Trails of Utah- New updated, expanded version! Detailed text and maps lead the gem hunter to abandoned mine dumps, stunning desert terrain, deep canyons, pristine mountains and beautiful lakes in search for specimens. Black and white photos highlight the collecting area. A color section aids in specimen identification. GG-GTU $12.95 Roadside Geology of Utah- The Roadside Geology series is designed especially for those who have no geologic training. The author presents the main aspects of the state's geology with details furnished by features which can be observed along the highway. GG-RGU $18.00