Colorado’s 13ers often take second billing to the state’s popular 14,000-foot summits by sheer virtue of being lower in elevation. To be fair, around Aspen, the collection of 14ers in the Elk Range—Maroon Peak, North Maroon Peak, Pyramid Peak, Capitol Peak, Snowmass Mountain, and Castle Peak—possess some serious bragging rights: they are among Colorado’s most difficult, and dangerous, 14,000-foot peaks to climb.

But the area’s 13ers are definitely not second-tier summits. Many offer challenges and scenery to rival their loftier neighbors—often with the benefit of fewer crowds. So if you’re an adventurous hiker who wants to avoid the climbing masses and are comfortable navigating off-trail terrain, get your high-mountain fix on these five noteworthy Aspen 13ers instead. Once you’re standing at the top, enjoying a panaromic vista, the fact that you’re at 13,000 rather than 14,000 feet will take a backseat to the grandeur of the mountain landscape.

In This Feature:

Hike a 13er: East Geissler Mountain

A full day’s worth of scenery packs into a compact outing to summit a 13er in the mountains east of Aspen.

07/05/2021 By James Dziezynski

Hike a 13er: UN 13,001 "Lost Man Lake Peak"

Test your scrambling skills as you summit UN 13,001, also know as "Lost Man Lake Peak," a 13er in the mountains east of Aspen.

07/05/2021 By James Dziezynski

Hike a 13er: Petroleum Peak

Bag a summit far more scenic than the name implies as you ascend amid a riot of wildflowers on this 13,000-foot peak in the mountains east of Aspen.

07/05/2021 By James Dziezynski

Hike a 13er: Tabor Peak

A dramatic knife-edge walk and a blazing blue high-alpine tarn distinguish this summit hike of a 13,000-foot peak in the mountains east of Aspen.

07/05/2021 By James Dziezynski

Hike a 13er: Williams Mountain South C

The ponderous name belies an accessible peak packed with views on this summit hike of a 13,000-foot peak in the mountains east of Aspen.

07/05/2021 By James Dziezynski

High-Altitude Hiking Preparedness Basics

These expert tips will help you traverse wildflower meadows and bag lofty summits while staying safe, conscientious, and comfortable.

07/05/2021 By James Dziezynski

Get the Gear for a High-Altitude Summit

Everything you need for peak performance, from footwear to outerwear to healthful, energy-filled snacks.

07/05/2021 By Cindy Hirschfeld