14,089 ft / 4,294 m

#45 in Colorado

#84 in United States


2,183 ft / 665 m

#63 in Colorado

#875 in United States


38 summits

#74 in Colorado

#974 in United States

Top climbing months

August   33%

July   30%

September  17%

Most climbed route

Northeast Ridge via Chicago Basin

Class 3


  • Mount Eolus is a Colorado 14er within the Weminuche Wilderness in the Needle Mountains, a subrange of the San Juan Mountains.
  • Mount Eolus is one of 3 fourteeners in the Needle Mountains; the others are Sunlight Peak and Windom Peak. All 3 peaks are located around the cirque known as Upper Chicago Basin.
  • Eolus lies west of the upper basin, while the other peaks lie on the east side.
  • Among the most remote of the fourteeners and has a strong wilderness character.
  • Windom Peak is only 1 foot lower than Mount Eolus.
  • North Eolus (14,039 ft) is a northern subpeak of Mount Eolus, which is not usually counted as an official fourteener, since it has a topographic prominence of less than 300 feet. However it is sometimes climbed in conjunction with Eolus.
  • A popular way to access Chicago Basin is the Durango & Silverton Narrow Gauge Railroad. It will drop off/pick up hikers at the trailhead far from any road.
1 summit • 22.6 mi • 9,180 ft gain • 18 hr 28 min