Very Easy

Evergreen Lake, Evergreen, CO

Red Rocks, Morrison, CO

Easy

Mount Falcon Park, Morrison, CO

St. Mary's Glacier, Idaho Springs, CO

Alderfer Three Sisters Park, Evergreen, CO

Moderate

Upper Maxwell Falls Loop, Conifer, CO

Lair o' the Bear Park, Idledale, CO

Staunton State Park, Pine, CO

Mount Sanitas, Boulder, CO

Difficult

Butler Gulch, Empire, CO

The Flatirons, Boulder, CO

https://www.alltrails.com/trail/us/colorado/first-and-second-flatiron-loop

Herman Gulch, Silver Plume, CO

https://www.alltrails.com/trail/us/colorado/herman-gulch-trail

Elk Falls Trail, Pine, CO