Chautauqua Geology Tour

Discover millions of years of earth history written directly into Boulder’s famous Flatirons on a free, expert-led outdoor walk across scenic mountain trails.

This is a hosted 2nd Summit event! Explore the fascinating geology of the Flatirons alongside fellow members on a guided walk where ancient rock formations tell stories millions of years in the making. Discover the natural wonders beneath your feet while enjoying breathtaking views and engaging insights. This unique experience is led by local expert and professional geologist, Bruce Manchon.