Open Space Updates
Interested in updates about Boulder trails, open space community projects and upcoming nature programs? Sign up for "Field Notes," our open space e-newsletter! Follow @boulderosmp on Instagram, Twitter and Facebook.
Amphitheater's short and sweet ascent begins at Gregory Canyon Trailhead and ends at Saddle Rock Trail. This steep .4-mile trail will kick your cardio into high gear while you enjoy a wet Colorado climate with dense green foliage. The Amphitheater Express Trail is a short access trail that branches off the main trail for climbing.