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Hiking trails & Routes
United States
Colorado
Boulder County

Miller Rock via Ceran St. Vrain Trail

Moderate

4.9

(3374)

8,993

hikers

Miller Rock via Ceran St. Vrain Trail

02:56

9.89km

290m

Hiking

Hike the moderate 6.1-mile Miller Rock via Ceran St. Vrain Trail for diverse terrain, riverside paths, and 360-degree mountain views.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Start point

Get Directions

1

3.18 km

Ceran Saint Vrain Trailhead

Highlight • Trail

The trail follows the creek north from here for about two miles before splitting off. There is plenty of parking here and you can stay at Jamestown Cabin just down from the trailhead.

Tip by

2

4.30 km

Ceran St. Vrain Trail

Highlight • Trail

After crossing an attractive wooden footbridge the Ceran Saint Vrain Trail heads north, following the South Saint Vrain Creek until it intersects with Miller Rock Road. The trail is relatively …

Tip by

3

6.17 km

Miller Rock Road

Highlight • Trail

From here you can take the trail west and north to Miller Rock or east to Cannon Mountain.

Tip by

4

8.09 km

Miller Rock

Highlight • Viewpoint

B

9.89 km

End point

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Way Types & Surfaces

Way Types

7.58 km

2.31 km

Surfaces

7.58 km

2.28 km

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Elevation

Elevation

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Weather

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Saturday 11 July

28°C

14°C

-- %

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Frequently Asked Questions

What is the overall difficulty of the Miller Rock via Ceran St. Vrain Trail?

This trail is generally rated as moderate. While the initial section along the Ceran St. Vrain Trail is a gentle descent, the climb to Miller Rock involves a significant elevation gain and can be steep and rocky. It's a rewarding challenge for hikers with some experience.

What kind of terrain can I expect on this hike?

The trail begins with a peaceful, shaded descent along the Ceran St. Vrain Trail, following the South Saint Vrain Creek through evergreens and aspens. After about 1.8 to 2 miles, it connects with an old jeep road, where the path ascends steeply and becomes rockier. Expect to navigate rocky sections and potentially loose rocks, sometimes described as 'babyheads'. The final push to Miller Rock involves a short scramble.

What are the main scenic highlights and viewpoints along the route?

Along the Ceran St. Vrain Trail, you'll enjoy the serene riverside environment with pine forests and aspens. The major highlight is the incredible 360-degree vista from Miller Rock, offering expansive views of the Front Range snow-capped peaks, including the Indian Peaks, Longs Peak, and the Mummy Range, as well as the foothills of the Roosevelt National Forest.

Where is the trailhead located and is there parking available?

The trail starts at the Ceran Saint Vrain Trailhead. Parking is typically available at the trailhead. It's always a good idea to arrive early, especially on weekends, as parking can fill up.

Is this trail dog-friendly?

Yes, the Miller Rock via Ceran St. Vrain Trail is generally dog-friendly. However, please ensure your dog is kept on a leash and that you pack out all waste to preserve the natural environment for everyone.

What is the best time of year to hike this trail?

The trail offers a rewarding experience in various seasons. Late spring through early fall is ideal for pleasant weather. For those venturing in late fall and winter, wearing microspikes is highly recommended due to likely icy terrain on the ascent to Miller Rock.

Are there any permits or entrance fees required to access this trail in Roosevelt National Forest?

No, there are typically no specific permits or entrance fees required to hike the Miller Rock via Ceran St. Vrain Trail within the Roosevelt National Forest. However, always check the official Forest Service website for any updated regulations or fire restrictions before your visit.

Is this an out-and-back trail, or are there loop options?

The primary route to Miller Rock via the Ceran St. Vrain Trail is an out-and-back. However, there are options to create a loop using sections of Forest Service roads, though some of these might be shared with ORVs.

What wildlife might I encounter on the trail?

The woodlands along the trail are home to various wildlife. Hikers are advised to be mindful of animals and consider wearing a bear bell as a precaution. You might also spot deer, elk, and a variety of bird species.

Does this trail intersect with other well-known paths?

Yes, the route primarily follows the Ceran St. Vrain Trail and then connects to the Miller Rock trail. It also passes through sections known as Miller Rock Spur and Headache.

What should I bring for this hike?

Given the varied terrain and potential for steep, rocky sections, sturdy hiking boots are essential. Bring plenty of water, snacks, sun protection, and layers of clothing as weather can change quickly. If hiking in colder months, microspikes are highly recommended for icy conditions. Consider a bear bell for wildlife awareness.

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