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Rocky Mountain National Park Trip
Colorado
August 26, 2025
by Lin Chao
group A
Trailblazers are ready for Chasm Lake. [photo by Lin]
Vicki, Grey, Jeff, Hong Li, Felix, anna, Edith, Mona, Sonny, John K, Jan D, Ron.

The Chasm Lake trail (by Romona) is a challenging but rewarding high alpine hike in the RMNP. The trail features dramatic mountain scenery, waterfalls and Chasm Lake at the foot of Long's Peak.

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what a beautiful morning.
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The unstopped group - Mona, Felix, Jan, and Edith. [photo by Lin]
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Yes, Chasm is only 3.7 miles to go. [photo by Lin]

The trail starts at the Long's Peak trailhead and passes through the forest and several waterfalls. After about 3.4 miles you will reach "Chasm Junction " where the trail splits. Directing you to Chasm Lake. We did have one member who accidentally opted for more elevation. From here the trail continues with spectacular high alpine terrain. There was evidence of meticulous trail maintenance along this route.

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Yes, when you hiking above tree line, lightning is dangers. [photo by Lin]
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Take a break. [photo by Lin]
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Almost to the Chasm Lake.

Kudos to the teams with pick axes and physical strength. There were also beautiful privies closer to the top along with hitching posts. The final descent requires some scrambling; at 11,800 feet this may require a breather. The view and the hike is awe-inspiring.

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Waterfall. [photo by Lin]
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Felix is enjoy the hike. [photo by Romona]
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The Best restroom on this trail. [photo by Romona]
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Gusst who is on duty today? [photo by Romona]
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What a feeling when you put your feet into the COLD water. [photo by Lin]
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A Ptarmigan. [photo by Lin]
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The weather is changing. [photo by Lin]
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Chasm Lake. [photo by Lin]
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Exit time.
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Arizona Trailblazers Hiking Club, Phoenix, Arizona updated October 11, 2025
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