14,428 ft / 4,397 m


1,961 ft / 597 m


83 summits

Top climbing months

July   36%

September  17%

August   16%

Most climbed route

Southwest Slopes from Halfmoon Creek TH

Class 2 • 3,748 ft / 1,142 m gain


  • Mount Massive is the 2nd highest peak in Colorado and the 3rd highest peak in the contiguous United States.
  • Long thought to be the highest 14er in Colorado before next-door neighbor Elbert took that crown.
  • Name comes from its elongated shape with 5 summits over 14,000 ft and a summit ridge over 3 miles long.
  • Has the most acreage above 14,000 feet of any mountain in Colorado.
  • Standard route starts on the Colorado Trail before an often gradual ascent through wide alpine meadows to the summit ridge.
"Hiked up the Southwest slopes via Half Moon Trail, made the summit and returned on the main Mt Massive Trail making a full loop. The Southwest Slopes was very difficult for me, but the scenery is so worth the effort! Got to photograph a Mama Mountain Goat with her Kid at the summit!" - Brandon-Shinsplint-, Aug 26, 2017
"Great day in the mountains. Easy to lose the trail in snow over 13k and wound up going up some loose talus. Conditions were perfect for glissading on the descent- 3800' in only 2 hours!" - Christopher, Jun 11, 2017
"My second summit of Mount Massive! This was my first time climbing it via the East Ridge. Not an easy route! It is about the same distance as the standard route, but with more elevation gain. You can see the standard route just a few miles south while on this route. The last 3 miles up the ridge are by far the worst! There are tons of ups and downs on the ridge, and because of the snow there were some places that were class 3. Also, everyone should know that the bears are starting to wake up and become active for the season. We broke trail on the way up. On the way down there were huge bear tr" - IanWright, Apr 13, 2016
"A nice sunny day to take in the all the scenery as we climbed up the east slope then scrambled along the ridge to the summit bump. Hung out for awhile until the summit got a bit crowded. " - Nimblefoot, Jul 29, 2015
"Gorgeous day, beautiful scenery and amazing views. It was a bit odd having so much time alone in such an awesome space, but we had seemed to have the mountain to ourselves and the Marmots :)" - DaniB, Jul 28, 2015



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