Chilling Heights at St. Mary's Glacier
Adventure Destination

Chilling Heights at St. Mary's Glacier

Explore the 1.5-mile trail at St. Mary's Glacier, near Idaho Springs, Colorado. This moderately challenging hike offers stunning views of the glacier and alpine lake, with activities like skiing and snowshoeing available year-round.

Hiking8.3/10Moderate
Photo Gallery

Category

Hiking

Typical Duration

2-4 hours

Difficulty

Moderate

About This Adventure Destination

St. Mary’s Glacier, located near Idaho Springs in Colorado’s rugged mountain region, offers a rare alpine experience just a short drive from Denver. This striking landmark is one of the few permanent snowfields in the state, holding onto its icy presence even during summer months. Visitors are drawn not only by the glacier itself but also by the crystal-clear turquoise lake that sits at its base, providing a stunning contrast against the surrounding evergreen forest and jagged peaks.

The glacier is actually a remnant of the last Ice Age, giving hikers and visitors a tangible connection to Earth’s glacial history. The trail that leads upward is steep and rocky, with sections of loose gravel and ice, making proper footwear essential. Tucked within Arapaho National Forest, the area’s geology features rugged granite rock formations carved by ancient glaciers, while the surrounding flora includes resilient alpine wildflowers and pine species adapted to the high elevation.

St. Mary’s Glacier is a beloved spot year-round. Summer offers hiking and tranquil lakeside views, while winter allows for snowshoeing and backcountry ski adventures. The changing seasons create distinctive landscapes, from icy blue snowfields to vibrant wildflower displays. The accessibility of this trail, combined with its breathtaking scenery, makes it stand out among Colorado’s mountain destinations.

Local visitors praise its serene atmosphere, the refreshing cool air near the lake, and the rewarding panoramic views atop the rocky outcrops above the glacier. It’s a place where nature’s raw beauty blends with outdoor challenge, inspiring visitors to appreciate Colorado’s alpine north front range.

Editorial Assessment

St. Mary's Glacier is a beautiful destination offering year-round access to snow and picturesque hiking opportunities. While it provides a unique combination of an alpine lake and glacier, its accessibility and familiarity contribute to its mid-range rating. It's a favorite among nature lovers but lacks the global renown of other iconic landmarks.

Chilling Heights at St. Mary's Glacier

Adventure Guide to Chilling Heights at St. Mary's Glacier

1

1. Hiking the Glacier Trail

  • Special features:

    A 1.5-mile roundtrip trail climbs steeply through rocky terrain up to the snowfield and lake.

  • What to expect:

    Rocky, sometimes slippery paths; stunning lake views; panoramic summit vistas.

  • Visitor tips:

    Wear sturdy hiking boots, bring water and layers. Best visited late spring through early fall to avoid icy conditions.

  • Local insight:

    Starting early avoids crowds and offers peaceful moments at the lake. Avoid the $20 ski lot by parking at the nearby Silver Lake lot for $10.

2

2. Snowshoeing and Backcountry Skiing

  • Special features:

    Winter and early spring keep the snowpack deep, perfect for snowshoeing or skiing near the glacier.

  • What to expect:

    Remote snowy terrain, crisp mountain air, fewer visitors.

  • Visitor tips:

    Bring traction devices, poles, and dress warmly; be prepared for wind and rapidly changing weather.

  • Local insight:

    The glacier remains icy year-round, requiring caution early or late season.

3

3. Lakeside Relaxation and Wildlife Watching

  • Special features:

    The stunning alpine lake offers spots for resting, picnics, or light foot wading.

  • What to expect:

    Clear water, tranquil environment, occasional wildlife like mountain bluebirds and marmots.

  • Visitor tips:

    Bring sunscreen and insect repellent; maintain respect for fragile high-altitude ecosystems.

  • Local insight:

    Midday sun enhances the lake’s turquoise color, perfect for photos and quiet reflection.

4

Getting There & Practical Info

  • Location:

    Approximately 45 minutes west of Denver near Idaho Springs, CO.

  • Directions:

    Take I-70 west from Denver to Exit 240, then follow signs to St. Mary’s Glacier.

  • Parking:

    $10 to $20 fee depending on lot, clean restroom facilities available.

  • Best time to visit:

    Late May through September for hiking; December to March for snow activities.

  • What to bring:

    Hiking boots, water, snacks, weather-appropriate clothing, sun protection, and traction devices in colder months. St. Mary’s Glacier offers a memorable outdoor experience combining adventure with serene alpine beauty that visitors will carry long after the hike ends.

Reviews

M
Matt Cook2 weeks ago

Great destination! Enjoyed the open trail and peaceful outdoor atmosphere.

S
Shruti Subramanian2 weeks ago

Wish we could have gone up to the glacier. Steep hike. The snow started melting so became ice. We didnt have proper footwear. Enjoyed playing in the snow near by. Parking at the bottom

B
B A3 weeks ago

Love going to St . Mary's still close to Denver, but far enough to just get away from the city

E
Eduardo Prieto4 weeks ago

Google doesn't tell you about the fees. After driving there and learning last minute I had to pay for parking in advance it was a total let down. There are signs everywhere saying they'll tow your car. In the freezing cold full of snow they might as well be threatening you with a death sentence

T
Trang Thaiin the last week

I just went this past Sunday (May the Fourth, 2025). I read the reviews and while most people find the rocks at the beginning the most challenging and it becomes easier after, I find those rocks super easy, I find the big rocks at the top harder but manageable, and I find the easy part the hardest simply because I was unprepared. Coming from the hot Texas, and having lived in New York for 6 years, I did not expect so much ice on the ground. I had no spikes, no poles, no hiking shoes, I was wearing worn sneakers. To make it worse, I was hiking at 5 am without a flash light because I was trying to catch the sunrise. I got off trail at some point, slid a lot, dropped my feet into tree holes a few times, and almost gave up. Until I found the trail again and was able to step on footprints... I am pretty sure many people have done this, not recommended for the average walker, and not recommended doing alone at 5am like I did, but I continued past the lake to hike up to the rocky peak (I have a fear of height so I had to motivate myself a few times, it is a bit narrow up there). The 360 view is stunning. I was also able to walk on the lake a bit where the ice looks completely white and not clear. Super fun. I am sure summertime offers a different type of magnificence. Also, do not park at the $20 ski lot, go just a bit further to Silver Lake for the $10 St Mary's Glacier Parking Lot. Very easy to pay.

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