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Routes
Hiking trails & Routes
United States
Colorado
Boulder County
Eldorado Springs

Rattlesnake Gulch Loop

Easy

2.8

(27)

46

hikers

Rattlesnake Gulch Loop

01:49

5.37km

280m

Hiking

Embark on the Rattlesnake Gulch Loop, an easy 3.3-mile (5.4 km) hike that offers a rewarding experience in Eldorado Canyon State Park. You will gain 919 feet (280 metres) over an estimated 1 hour and 49 minutes, making it a great option for a quick outing. The route winds through…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Ruins of the Crags Hotel

Highlight • Historical Site

The Crags Hotel, also known as the Crags Mountain Resort, was built in 1908 at the top of the canyon. The hotel was a very popular destination.

There were 3 …

Tip by

1

2.01 km

Wear good boots. Lots of golf ball- sized ball bearings loose rock, but 2 1/2 seasons of the year there are a fair number of small rattlers and they aim …

Tip by

2

3.05 km

Rattlesnake Gulch Trail

Highlight • Trail

In the Eldorado Canyon, this path offers you absolutely superb views of the canyon, and other part of the state park.

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B

5.37 km

Continental Divide Overlook

Highlight • Viewpoint

The Rattlesnake Gulch Trail dead ends at this overlook situated over South Boulder Creek and Eldorado Springs and overlooking South Boulder Peak. There are a few different overlooks on the Rattlesnake Gulch Trail.

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Way Types & Surfaces

Way Types

5.37 km

Surfaces

5.31 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,150 m)

Lowest point (1,870 m)

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Weather

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Today

Friday 15 May

27°C

14°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the difficulty level of the Rattlesnake Gulch Loop?

The Rattlesnake Gulch Loop is generally considered a moderate hike. While komoot rates it as 'easy' due to its overall length and duration, be prepared for a consistent uphill climb with numerous switchbacks, especially a strenuous initial ascent. It's suitable for hikers with a reasonable level of fitness.

Are dogs allowed on the trail?

Yes, the Rattlesnake Gulch Loop is dog-friendly! However, all dogs must be kept on a leash at all times to ensure the safety of wildlife and other hikers.

What are the key sights and landmarks along the route?

The trail offers diverse scenery and notable features. You'll pass the historical Ruins of the Crags Hotel, a luxury resort that burned down in 1912. As you ascend, you'll get expansive views of Eldorado Canyon and the eastern plains, culminating in the breathtaking Continental Divide Overlook, offering panoramic vistas of distant snow-capped peaks.

Do I need a permit or pay an entrance fee for Eldorado Canyon State Park?

Yes, as the trail is located within Eldorado Canyon State Park, an entrance fee or a valid Colorado State Parks pass is required. You can find more information on fees and passes on the official Colorado Parks and Wildlife website: colorado.gov.

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

The Rattlesnake Gulch Loop can be hiked year-round. Spring and fall generally offer the most pleasant temperatures for hiking. Summer can be hot, and winter hikes can be icy and dangerous, often necessitating crampons or microspikes and trekking poles.

What is the terrain like on the Rattlesnake Gulch Loop?

The path is a wide, rocky trail that winds through mixed forests and open areas, often sparsely shaded with ponderosa pines. You'll encounter numerous switchbacks on the uphill sections. While challenging, the grade is generally not overly aggressive, and there are some mellower sections.

Is the trail suitable for families with children?

While the trail is popular, its consistent uphill climb and rocky terrain might be challenging for very young children or those not accustomed to hiking. It's best suited for families with children who have a reasonable level of fitness and hiking experience.

How can I avoid crowds on the Rattlesnake Gulch Loop?

This is a popular and heavily trafficked trail, especially on weekends, due to its accessibility from Denver and Boulder. To avoid crowds, consider hiking on weekdays or arriving early in the morning on weekends.

Does the trail intersect other well-known paths?

Yes, the route primarily follows the Rattlesnake Gulch Trail, which makes up 100% of the route. It is also known as the Rattlesnake Gulch Trail in other sections, covering 86%, 75%, 32%, and 23% of the route respectively.

What should I bring for a hike on the Rattlesnake Gulch Loop?

Given the trail's elevation gain and exposure, it's advisable to bring plenty of water, sun protection (hat, sunscreen), and sturdy hiking shoes. Layers are recommended as weather can change quickly. For winter hikes, microspikes or crampons and trekking poles are essential.

Is there parking available at the trailhead?

Yes, parking is available within Eldorado Canyon State Park, which serves as the trailhead for the Rattlesnake Gulch Loop. However, due to the trail's popularity, parking lots can fill up quickly, especially on weekends. Arriving early is highly recommended.

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