A Geological Tour of Denver, Golden, and Colorado's Front Range

Pericles Press Home | Book | Contact Us/Ordering

A Theory | Seven Nations | Governments and Empires | Geological Past

The Idaho Springs Batholith

Gneiss and granite along the Apex Trail

Fairly large granitic intrusion through grey gneiss. Feldspar and quartz crystals are visible.

The Apex and Gregory Wagon Road