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United States
Colorado
Boulder County

Picture Rock and Wild Turkey Loop

Hard

3.1

(14)

38

runners

Picture Rock and Wild Turkey Loop

04:41

37.3km

740m

Running

Jog the difficult 23.1-mile Picture Rock and Wild Turkey Loop in Heil Valley Ranch, featuring diverse terrain and scenic viewpoints.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

83 m

Heil Valley Ranch - Picture Rocks Trailhead

Highlight • Trail

The Picture Rock Trailhead is one of several trailheads that grant access to the Heil Valley Ranch Open Space that spans north-south between Boulder and Lyons. At the Picture Rock …

Tip by

2

5.25 km

Vintage Car

Highlight • Structure

Right off the popular Picture Rock Trail is an old, vintage, rusted out green car. This1930s (!) car is somewhat of a local landmark and a fun place to stop …

Tip by

3

16.2 km

The Corral Trailhead is right off of Lefthand Canyon Drive and is the southernmost trailhead and access point for Heil Valley Ranch. Although it is not the biggest trailhead and …

Tip by

B

37.3 km

End point

Parking

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Way Types & Surfaces

Way Types

27.7 km

5.92 km

2.46 km

1.20 km

< 100 m

Surfaces

34.9 km

2.00 km

236 m

152 m

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Elevation

Elevation

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Weather

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Friday 17 July

33°C

17°C

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Frequently Asked Questions

Where can I park to access the Picture Rock and Wild Turkey Loop?

You can typically start this loop from the Heil Valley Ranch - Picture Rocks Trailhead. Another option is the Heil Valley Ranch - Corral Trailhead, depending on your preferred starting point for the loop.

Are dogs allowed on this jogging loop?

No, dogs are generally not allowed on the Picture Rock and Wild Turkey Loop. This restriction is in place due to concerns about local wildlife.

What is the best time of year to jog this loop?

The trail offers a great experience throughout much of the year. However, spring and fall often provide the most pleasant temperatures for jogging, with the added bonus of wildflowers in spring. Always check local weather conditions before heading out.

Are there any permits or fees required to access Heil Valley Ranch?

Yes, Heil Valley Ranch, where this loop is located, is part of Boulder County Parks and Open Space. A daily or annual pass is required for vehicle entry. You can find more information on passes and regulations on the Boulder County Parks & Open Space website.

What is the terrain like on this jogging loop?

The terrain is quite varied. You'll start with a generally gentle climb on Picture Rock, which becomes steeper and rockier higher up, featuring 'rock gardens' and larger obstacles. However, there are also 'buttery smooth' and 'fast flowy' singletrack sections, especially on descents and through forested areas. The Wild Turkey Trail also has legacy rocks but includes smooth, flowy sections.

Is this loop suitable for beginner joggers?

Due to its total elevation gain and technical sections, this loop is generally rated as difficult for jogging. While some sections are very runnable, the presence of rocky terrain and significant climbs means it's best suited for intermediate to advanced trail runners who are comfortable with technical features.

What notable landmarks or viewpoints will I encounter on the trail?

You'll pass by an old grain silo about halfway down the Picture Rock section. A key highlight is the Wild Turkey Overlook, which offers a 'spectacular viewpoint' and is an excellent spot to pause and enjoy the scenery. You might also spot a Vintage Car along the way.

Is this a multi-use trail, and what should joggers be aware of?

Yes, this is a popular multi-use trail, especially with mountain bikers. Joggers should be aware of shared trail use, stay alert, and yield to uphill traffic and mountain bikers, particularly on blind corners and descents.

Can this loop be combined with other trails for a longer run?

Absolutely! This loop is notable for its connectivity. It can be used to link Heil Valley Ranch to the town of Lyons, or even connect Heil Ranch with Hall Ranch for significantly longer, more 'epic' runs if you're looking to extend your adventure.

What kind of wildlife might I see on the trail?

The area is home to various wildlife. While specific sightings are never guaranteed, you might encounter deer, various bird species, and other small mammals. Remember to observe from a distance and respect their natural habitat.

Are there any tips for pacing or navigating the more challenging sections?

The initial miles of the Picture Rock Trail are more mellow before the climb intensifies. Consider starting at a moderate pace to conserve energy for the steeper, rockier sections higher up. The descent often features 'fast flowy' singletrack, allowing for quicker running once you've navigated the technical climbs.

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