Boulder Mountain Park
Boulder, CO 80302
The Flatirons are a unique geological feature that are by far the most famous attraction in Boulder. Accessible through Chautauqua Park
and visible anywhere in the city, the Flatirons are a completely natural formation that occurred when a glacier literally pushed the mountains onto their sides, leaving the flattened undersides and layers of sediment visible in a way they usually aren't. The Flatirons take their name from their shape, which resembles three irons set down on the ground. A popular hiking spot, rappelling destination and visual treat all rolled into one, the Flatirons must be seen to be believed.