4.8
(7375)
14,805
runners
Walker Ranch Loop
01:43
12.6km
420m
Running
The Walker Ranch Loop offers a spectacular and demanding jogging experience, winding through diverse ecosystems from open, high-altitude slopes with views of the Flatirons and Rocky Mountains to shaded evergreen forests and refreshing stretches along South Boulder Creek. You'll navigate varied terrain, including rocky sections and steep climbs, making it a true test of endurance over its 7.8 miles (12.6 km) with 1390 feet (424 metres) of elevation gain, typically taking around 1 hour and 43 minutes.
Planning your visit means preparing for a difficult route that's popular with multiple user groups, so expect to share the trail with mountain bikers and hikers. The trailhead is accessible via a scenic drive up Flagstaff Road. Given the significant elevation changes and the altitude, ensure you carry enough water and are ready for a strenuous workout, especially if you plan to tackle the challenging climbs.
This trail explores the southern half of the historic Walker Ranch, a National Historic Landmark that was once one of the region's largest cattle ranches. A notable feature is "The Wall" staircase, a section of cliff-like stone steps that adds to the trail's legendary difficulty. It's a fantastic option for experienced joggers seeking a blend of natural beauty, historical context, and a serious physical challenge.
Last updated: June 9, 2026
Waypoints
Start point
Parking
Get Directions
67 m
Walker Ranch Loop Trailhead
Highlight • Trail
This property in addition to its historical aspect has 5 archaeological sites. Three of these are remnants of aboriginal settlement in the area and two of these are Arapahoe sites.
Tip by
4.68 km
South Boulder Creek
Highlight • River
Tip by
12.6 km
End point
Parking
Way Types & Surfaces
Way Types
12.1 km
463 m
Surfaces
12.5 km
< 100 m
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Elevation
Highest point (2,230 m)
Lowest point (1,970 m)
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Weather
Powered by Foreca
Wednesday 24 June
24°C
12°C
28 %
Additional weather tips
Max wind speed: 10.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
Where can I park to access the Walker Ranch Loop?
The main access point for the loop is the Walker Ranch Loop Trailhead. Parking is available there, but it can fill up quickly, especially on weekends. Arriving early is often recommended.
Are there any permits or entrance fees required for Walker Ranch Park?
No, there are generally no permits or entrance fees required to access trails within Walker Ranch Park. However, it's always a good idea to check the Boulder County Parks & Open Space website (bouldercounty.gov) for any updated regulations or advisories before your visit.
Is the Walker Ranch Loop dog-friendly?
Yes, dogs are generally allowed on the Walker Ranch Loop. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out any waste.
What is the best time of year to jog the Walker Ranch Loop?
The trail offers a rewarding experience year-round. Spring and fall provide pleasant temperatures and vibrant scenery, with wildflowers in bloom during spring. Summer can be warm, so an early start is advisable. In winter, you might encounter packed snow, adding a different challenge. Always check current trail conditions before heading out.
What kind of terrain can I expect on this trail?
The terrain is highly diverse, ranging from smooth singletrack and wider, almost road-like sections to rocky patches and steep steps. You'll encounter dirt and gravel, and potentially packed snow in winter. Be prepared for significant elevation changes, including a notorious "knee-busting staircase" section.
What natural features and viewpoints will I see along the way?
You'll be treated to stunning panoramic views of the foothills, high plains, the Rocky Mountains, the Flatirons, and the Indian Peaks. The trail also follows South Boulder Creek, offering refreshing stretches along the water. Look out for lush forests, open meadows, and vibrant wildflowers depending on the season.
What's the best way to tackle the challenging sections of the loop?
Many experienced joggers recommend running the loop counter-clockwise. This approach starts with a consistent descent and saves the most strenuous climb, including the steep stone steps, for later in the route, potentially offering a smoother finish.
Is the Walker Ranch Loop suitable for beginner joggers?
The Walker Ranch Loop is generally rated as difficult and requires very good fitness due to its significant cumulative elevation gain and varied, challenging terrain, including steep uphill sections and stone steps. It might be strenuous for beginner joggers, but rewarding for those with good endurance.
Does the Walker Ranch Loop connect with other trails?
Yes, the route intersects with several other paths. You'll find sections that overlap with the Josie Heath Trail, Ethel Harrold Road, Eldorado Canyon Trail, Fisherman's Access Trail, and Dale's Trail, offering opportunities to explore further if desired.
Are there any historical points of interest on the trail?
Yes, the trail passes by remnants of old homesteads from the 1880s, providing a glimpse into the area's past and adding a historical dimension to your run.
Is the trail shared with other users?
Yes, the Walker Ranch Loop is popular among both hikers and mountain bikers. Joggers should be aware of shared trail use and practice good trail etiquette, especially on narrower sections.
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