St. Mary’s Glacier Trail - Image 1
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St. Mary's Glacier Trail

4.6
·491k reviews·, United States

A stunning alpine lake and year-round snowfield accessible via a short, scenic hike in Colorado's Arapaho National Forest.

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Weekday mornings

Fewer crowds, better parking

CrowdLow
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St. Mary’s Glacier Trail - Image 1

St. Mary's Glacier Trail

Best Time

Weekday mornings

Fewer crowds, better parking

CrowdLow

Highlights

Must-see attractions

A stunning alpine lake and year-round snowfield accessible via a short, scenic hike in Colorado's Arapaho National Forest.

4.6
(491k reviews)

"St. Mary's Glacier offers breathtaking alpine views with a short hike, perfect for families and nature lovers."

Vertical photo
TIP

Wear sturdy shoes! :athletic_shoe:

The trail can be steep, rocky, and icy. Proper footwear is essential for safety and enjoyment.

Check weather & trail conditions :cloud:

Conditions change rapidly. Snow and ice can persist year-round.

Third hero image

Highlights

Discover the most iconic attractions and experiences

The Glacier Lake

The Glacier Lake

At the end of the main trail

A stunning alpine lake nestled at the base of a snow-capped mountain, offering breathtaking views.

Instagram
The Snowfield

The Snowfield

Above the lake

Even in summer, patches of snow often remain, providing a unique, almost year-round winter wonderland feel.

Instagram
Panoramic Vistas

Panoramic Vistas

Along the trail and at the lake

Enjoy sweeping views of the surrounding mountains and valleys as you ascend.

Instagram
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Planning Your Visit

Timing is Everything

St. Mary's Glacier is popular year-round, but crowds swell on weekends and holidays. Consider a weekday visit for a more serene experience. The trail can be icy or snowy, especially outside of summer, so check conditions before you go. Instagram

Parking & Access

Parking is available near the trailhead for a small fee, typically around $5. Arrive early, especially during peak season, as spots fill up quickly. The trail is dog-friendly, but remember to bring waste bags. Instagram+1

Best Times

When
Weekday mornings
Why
Fewer crowds, better parking
Crowd
Low
When
Summer afternoons
Why
Warmer weather, less ice
Crowd
Medium
When
Winter weekends
Why
Snowy wonderland, unique experience
Crowd
High

Insider Tips

from TikTok, Instagram & Reddit

St. Mary’s Glacier, Breckenridge and the Troll Trail 🏔️💐
ladydkm
20 likes • 345 views

Wear sturdy shoes! :athletic_shoe:

The trail can be steep, rocky, and icy. Proper footwear is essential for safety and enjoyment. Instagram

Check weather & trail conditions :cloud:

Conditions change rapidly. Snow and ice can persist year-round. Reddit

St. Mary's Glacier Trail
morantemark
17 likes • 101 views
St Marys Glacier in Thornton, Colorado! Located about 50 minutes from the city (Denver), this hike is suitable for beginners, and the trail is dog-friendly. The hike to the view shown here is a 1 mile out and back trail with gorgeous scenery and a breathtaking view of a lake at the bottom of a mountain. The hike can be up to 2.4 miles long if you choose to hike past this main view. Try to go ...
atravelerssecrets_ig
8 likes • 221 views

Bring water & snacks :water_wave:

It's an alpine environment; stay hydrated and fueled for your hike. Instagram

Dog-friendly fun :dog:

Leashed dogs are welcome, but be prepared to clean up after them. Instagram

Can you believe this amazing alpine lake can be reached by hiking just 1/2 mile? 🥾 St. Marys Glacier trail near Idaho Springs is a must-see 💦 🏔- parking is just $5 and is close to the trailhead 🏔- the trail is 2.4 miles R/T but if you want to just hike to the lake, its a short 1/2 mile 🏔- there is plenty of space at the lake to spend a few hrs relaxing, having lunch, or viewing wildlife [remembe...
dirtroadshighheels
455 likes • 3.6K views

Tips

from all over the internet

Wear sturdy shoes! :athletic_shoe:

The trail can be steep, rocky, and icy. Proper footwear is essential for safety and enjoyment. Instagram

Check weather & trail conditions :cloud:

Conditions change rapidly. Snow and ice can persist year-round. Reddit

Bring water & snacks :water_wave:

It's an alpine environment; stay hydrated and fueled for your hike. Instagram

Dog-friendly fun :dog:

Leashed dogs are welcome, but be prepared to clean up after them. Instagram

Parking fee required :moneybag:

A small fee is usually charged for parking near the trailhead. Instagram

What Travellers Say

4.6
(491k reviews)

Reviews Summary

Visitors rave about the stunning beauty of St. Mary's Glacier, particularly the picturesque alpine lake and the unique snowfield that persists even in warmer months. The short, accessible hike makes it a popular choice for families and casual hikers. However, some find the trail can be crowded, especially on weekends, and the parking lot fills up quickly. The unpaved access road can also be a challenge for some vehicles.

What People Like

Breathtaking alpine lake
Year-round snowfield
Accessible hike

What People Dislike

Crowded on weekends
Parking fills fast
Rough access road

Frequently Asked Questions

🚇 🗺️ Getting There

St. Mary's Glacier Trail is about a 50-minute to 1-hour drive from Denver, typically via I-70 West. Take exit 238 for Fall River Road and follow signs for St. Mary's Glacier. The road leading to the parking area can be rough, so a vehicle with higher clearance is recommended, though many sedans can make it with caution. Instagram

Public transportation options to St. Mary's Glacier Trail are very limited. It's best accessed by private vehicle. Consider ride-sharing services if you don't have your own car, but confirm driver availability and willingness to go to the trailhead. Reddit

The road to the parking area is unpaved and can be bumpy and rocky. While some visitors report driving it in regular cars, an SUV or 4x4 is ideal, especially after rain or snow. Instagram

Yes, the area offers various trails. While St. Mary's Glacier is the main draw, you can explore further into the Arapaho National Forest for more challenging hikes. Instagram

While the main trail is for hiking, there are designated off-road trails in the surrounding Arapaho National Forest for 4x4s and ATVs. It's crucial to stick to marked routes to protect the environment. Instagram

🎫 🎫 Tickets & Entry

There is no entrance fee for St. Mary's Glacier itself. However, there is a parking fee, typically around $5, collected at the lot near the trailhead. Instagram

St. Mary's Glacier is an outdoor natural attraction and is generally accessible year-round, from dawn till dusk. However, access can be affected by weather conditions, especially in winter. Instagram

The hike itself is free. The only cost associated with visiting is the parking fee at the designated lot. Instagram

No, you cannot book time slots for St. Mary's Glacier. It's a natural area, and entry is on a first-come, first-served basis, especially for parking. Instagram

Parking is available in a lot near the trailhead for a fee. It fills up quickly, especially on weekends and holidays, so arriving early is highly recommended. Instagram

🎫 🏞️ Onsite Experience

The hike to the main lake is a relatively short 0.5 miles out and back. If you continue further up the mountain, the total trail can extend to about 2.4 miles round trip. Instagram+1

The hike to the lake is considered easy to moderate, suitable for beginners. However, the terrain can be steep and rocky, and snow or ice can make it more challenging. InstagramReddit

Wear sturdy hiking boots with good traction. Layers are recommended as mountain weather can change quickly. Bring a jacket, even in summer, and consider waterproof gear if there's a chance of rain or snow. Instagram

Swimming is generally not recommended due to the extremely cold water temperatures, even in summer. Some visitors have been known to jump in for a quick thrill, but be aware of the risks. Instagram

Yes, St. Mary's Glacier Trail is dog-friendly! Dogs must be kept on a leash, and owners are responsible for cleaning up after their pets. Instagram

📸 📸 Photography

The most iconic photo spot is the view of the alpine lake with the snow-capped mountain behind it. The trail itself offers various vantage points with stunning mountain scenery. Instagram+1

Early morning or late afternoon often provide the best light for photography, with softer shadows and warmer tones. However, the dramatic landscape can be photogenic at any time. Instagram

Drone usage regulations can vary. It's essential to check current FAA and local regulations for Arapaho National Forest before flying a drone. Respect any posted signage. Instagram

A wide-angle lens is great for capturing the expansive mountain vistas and the lake. A telephoto lens can be useful for isolating mountain peaks. Don't forget a polarizing filter to enhance the blue of the sky and water. Instagram

Generally, personal photography is allowed. However, commercial photography or filming may require permits. Always be mindful of other visitors and the natural environment. Instagram

For Different Travelers

Tailored advice for your travel style

👨‍👩‍👧 Families with Kids

St. Mary's Glacier is a fantastic option for families looking for an accessible mountain adventure. The main trail to the lake is short (about 0.5 miles) and relatively easy, making it manageable for younger children. Instagram The novelty of seeing snow even in summer, and the beautiful lake, are usually big hits with kids. Instagram Remember to pack plenty of snacks and water, dress in layers, and ensure everyone has sturdy shoes. The parking fee is minimal, adding to its family-friendly appeal. Instagram

🐶 Dog Owners

Bring your furry friend along! St. Mary's Glacier Trail is a popular spot for dog owners. Dogs are welcome as long as they are on a leash. Instagram The relatively short hike and the opportunity for dogs to explore (safely) make it a great outing. Just be sure to bring waste bags to keep the trail clean for everyone. Instagram

📸 Photographers

For photographers, St. Mary's Glacier offers stunning alpine scenery. The lake, surrounded by mountains and often snow-capped peaks, provides dramatic backdrops. Instagram The short hike means you can spend more time capturing the perfect shot. Consider visiting during the golden hours of sunrise or sunset for the best light. Instagram Wide-angle lenses are ideal for capturing the expansive views. Remember to check drone regulations if you plan to use one. Instagram

Deep Dives

In-depth insights and expert knowledge

Navigating the Trail Conditions

St. Mary's Glacier Trail is known for its dynamic conditions. While the hike to the lake is relatively short (about 0.5 miles), the terrain can be steep and rocky. Outside of peak summer, expect snow and ice, which can persist year-round at higher elevations. Instagram Many visitors recommend checking recent trail reports on apps like AllTrails or local hiking forums before heading out. Reddit Proper footwear with good traction is crucial, and waterproof gear is advisable, especially during shoulder seasons or if there's a chance of precipitation. Instagram

The 'glacier' itself is more of a permanent snowfield that feeds the lake. It's not a true glacier in the traditional sense, but it offers a unique alpine experience. The steepness above the lake can be challenging for some, but the views are rewarding. Instagram

For those seeking a bit more adventure, the trail can extend further up the mountain, offering more challenging terrain and panoramic views. However, always be aware of your limits and the changing weather. Instagram

The Allure of the Alpine Lake

The star attraction of St. Mary's Glacier Trail is undoubtedly the stunning alpine lake. Nestled at the base of a dramatic mountain, its clear, cold waters reflect the surrounding peaks, creating a postcard-perfect scene. Instagram The lake is fed by the snowfield above, contributing to its icy temperatures year-round. While tempting, swimming is generally not advised due to the extreme cold, though some brave souls do take a quick dip. Instagram

This area is a popular spot for picnics and relaxation. Visitors often spend time here, soaking in the views and enjoying the serene mountain atmosphere. Instagram The accessibility of such a beautiful alpine lake, with a relatively short hike, makes it a favorite for families and casual hikers alike. Instagram

Photography opportunities abound around the lake. The contrast of the blue water, green vegetation (in summer), and white snow or grey rock creates a visually striking landscape. Instagram Remember to pack out everything you pack in to help preserve the pristine beauty of this natural wonder.

Year-Round Beauty and Challenges

St. Mary's Glacier Trail offers a unique experience regardless of the season. In summer, it's a vibrant green landscape with accessible trails and pleasant hiking weather. Instagram However, even during the warmest months, patches of snow can linger, giving it a distinct alpine feel. Instagram

As autumn approaches, the landscape transforms with fall colors, and winter brings a true wonderland. The lake freezes over, and the trails are blanketed in snow, creating a magical, albeit more challenging, environment. Instagram Winter visits require extra caution, appropriate gear (snowshoes or microspikes may be necessary), and a thorough check of avalanche conditions if venturing off the main path. Reddit

Spring can be a transition period, with melting snow and potentially muddy or icy conditions. It's crucial to stay updated on trail reports during this time. Reddit Regardless of when you visit, the dramatic scenery and the unique 'glacier' make St. Mary's Glacier a memorable destination.

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