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Address: Key Hole Route, Rocky Mountain National Park, CO
Description:

Located in Rocky Mountain National Park along the Key Hole Route.

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RMNP - What you need to know before you go

Rocky Mountain National Park (Colorado) Quick Facts Things to see: Estes Park, Emerald Lake, Trail Ridge Road, Adams Falls, Bear Lake and Chasm Lake. When to visit: The best... read more

5 of 5 bubblesReviewed October 20, 2016
ClaireRyan_FCW
,
Houston, Texas
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10 Reviews from our TripAdvisor Community

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Showing 10: English reviews
Houston, Texas
Level Contributor
87 reviews
57 attraction reviews
common_n_attraction_reviews_1bd8 30 helpful votes
5 of 5 bubbles Reviewed October 20, 2016

Rocky Mountain National Park (Colorado) Quick Facts Things to see: Estes Park, Emerald Lake, Trail Ridge Road, Adams Falls, Bear Lake and Chasm Lake. When to visit: The best time to visit the park is during the summer months when all the pass roads are open and you can explore the entire park. Do I need a hiking permit? Only... More 

Helpful?
Thank ClaireRyan_FCW
Fort Collins, Colorado
Level Contributor
26 reviews
9 attraction reviews
common_n_attraction_reviews_1bd8 24 helpful votes
5 of 5 bubbles Reviewed September 29, 2016

We went to this trail on a weekend in the end of September. It was literally the second most beautiful trail that I had ever hiked (1st one was Mt Rainier in June). The fall color was pretty even on the tundra area. Waterfalls everywhere on the trail and near the end of the trail. There was ice near the... More 

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Thank xiaocuidiniao
Vienna, VA
Level Contributor
178 reviews
65 attraction reviews
common_n_attraction_reviews_1bd8 91 helpful votes
5 of 5 bubbles Reviewed September 5, 2016

Quite a challenging hike for us sea-level folks! Well worth the effort. We got one of the last parking spots at the trailhead at 0555 on a weekday Bring lots of water and be prepared for mountain weather.

Helpful?
1 Thank George K
Level Contributor
11 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed July 20, 2016

What a great hike only took about 5 hours to do the 8.4 miles. We stopped for about a 45 minute lunch to take inn the sights on the top. What a beautiful day.

Helpful?
Thank earlz2015
Westminster, Colorado
Level Contributor
130 reviews
57 attraction reviews
common_n_attraction_reviews_1bd8 316 helpful votes
5 of 5 bubbles Reviewed April 30, 2016

If you want to get away from nearly everyone in Rocky Mountain National Park, there is no better place to do it than hiking to Chasm Lake. Tucked below the Diamond on Longs Peak, nestled in the cirque between Longs Peak and Mt. Lady Washington, Chasm Lake is smack dab in the middle of God's country. It is a difficult... More 

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4 Thank Richard R
Chicago, Illinois
Level Contributor
33 reviews
18 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
5 of 5 bubbles Reviewed September 18, 2015

First and foremost, my hike to Chasm Lake was done in late August, 2015 during dry ground conditions. The forecast was for clear and sunny conditions all day. I carried a lot of water in my Camelbak and gatorade bottles in addition to a PB&J sandwich and snacks. Sunscreen is also a must. The elevation change is great and the... More 

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1 Thank kevina994
Omaha, Nebraska
Level Contributor
785 reviews
160 attraction reviews
common_n_attraction_reviews_1bd8 1,439 helpful votes
5 of 5 bubbles Reviewed August 3, 2015

Chasm Lake was a wonderful hike my group of friends did in late July of 2015. Chasm Lake is a 8.4 mile round trip hike that has an elevation gain of almost 2,500 feet. The highest elevation point is 11,823 feet. The hike itself is strenuous and rocky making it a tough hike. There is a narrow path with a... More 

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3 Thank AlexanderDelarge
Warrenville, IL
Level Contributor
207 reviews
119 attraction reviews
common_n_attraction_reviews_1bd8 186 helpful votes
5 of 5 bubbles Reviewed September 26, 2014

After arriving in Denver via the airport early in the day, we were delayed significantly by an accident on the way to RMNP....grrr! We had planned to hike to Chasm Lake, but instead on got approximately 3 miles into the hike before we decided to turn around due to time of day. Regardless if we got to the lake or... More 

Helpful?
2 Thank warrenville111
Tecumseh, Canada
Level Contributor
7 reviews
5 attraction reviews
common_n_attraction_reviews_1bd8 5 helpful votes
5 of 5 bubbles Reviewed August 7, 2014

It's 4.5 miles from the parking lot at Longs Peak trailhead also the starting point for Chasm Lake. The first couple miles climb steadily up through the forest and the trail is well maintained. Once you exit the forest and enter the alpine tundra zone the views open up and the stunted trees lining the trail soon disappear. Be advised... More 

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1 Thank JGo52
Pittsburgh, Pennsylvania
Level Contributor
119 reviews
52 attraction reviews
common_n_attraction_reviews_1bd8 68 helpful votes
5 of 5 bubbles Reviewed July 28, 2014

We had limited time to hike in the Rockies and chose the Chasm Lake Trail based on reviews. This hike is amazing. The hike takes about 6 hours round trip. Add more time for taking in the views, taking pictures, resting, etc. We did not make it to the lake due to the snowfield that covered the path near the... More 

Helpful?
3 Thank Lizard72magic

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