Heil Ranch

 70 votes

7.9 Miles 12.7 Kilometers



993' 303 m


-992' -302 m


6,792' 2,070 m


5,897' 1,797 m



Avg Grade (3°)


Max Grade (9°)

All Clear

2 days agoUpdate

A good intermediate ride relatively close to Boulder, with many options for linking to other trails.

Mike Ahnemann


Heil Valley Ranch is one of the popular Boulder-area trail systems, and this ride is the most commonly ridden section of trail, covering the Wapiti Trail and Ponderosa Loop.

These trails were the original mountain biking trails at Heil, but others have since been added, including the Picture Rock trail that now makes it possible to ride from Heil Valley Ranch to Hall Ranch.

It's not the best ride in the area, but it's a solid trail with a moderate climb, mostly straightforward intermediate terrain, and a few additional obstacles, plus a fast descent back to the trailhead to keep advanced riders entertained.


This trail climbs, mostly gradually, right from the trailhead. You'll start out on a rough dirt road, but don't worry - the singletrack starts just up ahead.

Once you hit the singletrack, it's a steady climb for about 2.5 miles, all the way up to the junction with the Ponderosa Loop. The trail mostly runs through a heavily forested area, so there's plenty of shade. You're likely to see deer or other wildlife along the trail - maybe even a black bear.

The area is extremely rocky, but the Boulder Mountainbike Alliance and others have done much work to clean up the trail, make it flow better, smooth out the rocks, and keep it sustainable.

Eventually, you'll hit the junction with the Ponderosa Loop, marked with a wooden signpost. Here, you can continue straight to ride the loop counter-clockwise, or make a left. It doesn't matter which direction you choose - either way, you'll find yourself rolling trail, with many rocks, some loose, along the way. The trail is still intermediate here, but pay attention - the loose rocks can throw you off your line.

Halfway around the loop you'll find a scenic overlook with a park bench - perfect for a breather and a snack. The overlook provides a far away view of Hall Ranch below - which you can ride to by joining up with the Picture Rock trail.

Also along the Ponderosa loop are turnoffs for the Wild Turkey trail, which then leads to the Picture Rock trail, which can be ridden to Lyons and Hall Ranch.

Once you complete your loop up top, you'll head down the way you came. It can be a fast descent if you let go of your brakes, and trail improvements over the past couple of years have made this a nice flowy descent. It's still rocky though, and you might feel like you should check all the fasteners on your bike when you reach the bottom!

Watch out for riders and hikers coming uphill. This is a popular trail, and you'll likely have to stop to yield at least a few times on the way down.

History & Background

The 5200 acre open space making up Heil Ranch trails and the newer Picture Rock trail are part of a large land purchase made by Boulder County Parks and Open Space in 1993 and 1994. The area housed large quarry operations from the 1890's to the 1960's.


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3.5 from 70 votes

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Your Check-Ins


Jun 17, 2017
Tony Fagan
Jun 8, 2017
Chris Beindorf
Super fun, but very loose. Had a pretty good crash in one of the turns.
Jun 5, 2017
Travis Provin
Jun 5, 2017
Abram Ullrich
App isn't lying when it says very rocky. Rocks everywhere, but still a very beautiful ride. 7.9mi
May 21, 2017
Russell Gellman
Did just heil ranch and not any add one. It was fun but it was a lot of climbing and then a lot of descent. 7.9mi
May 13, 2017
Matt Newman
May 9, 2017
Michael Juergens
May 9, 2017
Craig Gomulka

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Trail Ratings

  3.5 from 70 votes


  3.5 from 70 votes
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in Colorado


1,332 Views Last Month
18,410 Since Nov 28, 2012
Intermediate Intermediate



All Clear 2 days ago
Dry: All dry, even the first rocky creek-crossing. No puddles.
Update ConditionsHistory

Getting forecast...

Nice ride. Muddier than needed to be. I wish they had handled trail slope to side slope better so trail would not be a runoff in some areas. Jun 17, 2015

Nice ride with beautiful views! Long and fun decent! 2 days ago

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