Climbing the Flat Irons

Flatirons Guided Rock Climbing in Boulder, Colorado

Classic Multi-Pitch Climbing on Iconic Front Range Sandstone

The Mountain Guides Colorado proudly offers guided rock climbing in the Flatirons, Boulder’s most iconic climbing destination. Rising dramatically above the city, these sculpted red sandstone formations feature long, east-facing slabs and striking ridgelines that dominate the skyline just south of Boulder, CO.

With over 1,000 feet of moderate climbing, the Flatirons are home to some of the longest and best beginner-friendly multi-pitch climbs in the country. Beyond the famous slab routes, hundreds of steeper and more technical lines are tucked into the trees along the flanks and back sides of these massive formations—offering variety, adventure, and a true alpine feel remarkably close to the Front Range.

Once you step onto the rock and into the forested gullies, it’s easy to forget just how close you are to town.

Climbing Overview

Flatirons Guided Rock Climbing

• Location: Boulder, Colorado
• Rock Type: Red sandstone slabs and faces
• Style: Traditional, multi-pitch climbing
• Trip Length: Typically 8 hours
• Season: Spring through fall (conditions dependent)

The majority of Flatirons routes are medium-length, traditionally protected multi-pitch climbs, making them ideal for climbers looking to build mileage, confidence, and efficiency on longer routes.

Routes & Objectives

The Flatirons offer a wide range of climbing experiences:

• Classic East Face Slab Routes: Long, moderate climbs with stunning exposure and approachable movement
• Steeper Hidden Routes: More technical climbs tucked into the trees and less-traveled aspects

Our guides select routes based on your experience level, comfort on slabs, and personal goals, ensuring a challenging but supportive experience.

Who This Trip Is For

Guided Flatirons climbs are ideal for:

• Climbers looking to gain experience on multi-pitch routes
• Intermediate climbers transitioning from single-pitch to longer objectives
• Climbers seeking mentorship on traditional gear and systems
• Visitors wanting a classic Boulder climbing experience with a professional guide

Prior multi-pitch climbing experience or instruction is required to participate in our group climbs.

Private guiding options may be available for climbers seeking a more customized experience.

What to Expect

On a guided Flatirons climbing day, you can expect:

• Professional route selection and risk management
• Instruction in efficient multi-pitch systems and transitions
• Coaching on movement, footwork, and slab technique
• Stunning views of Boulder and the Front Range
• A full, rewarding day on classic Colorado stone

Why Climb the Flatirons with The Mountain Guides Colorado

• Experienced, professional rock climbing guides
• Deep local knowledge of Flatirons routes and conditions
• Emphasis on safety, efficiency, and skill development
• Small group sizes for a high-quality experience
• Access to one of the most iconic climbing areas in the Front Range

Climb Boulder’s Most Iconic Rock

From historic slab routes to hidden technical lines, Flatirons Guided Rock Climbing in Boulder, Colorado offers an unforgettable multi-pitch experience in a truly unique setting.