Walker Ranch
Walker Ranch is a Boulder County open space southwest of Boulder, Colorado, best known for the 7.9-mile Walker Ranch Loop, a rugged trail popular with hikers and mountain bikers.
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Walker Ranch quick facts
- Distance
- 7.9 miles for the Walker Ranch Loop (Boulder County).
- Elevation gain
- Roughly 1,400 to 1,600 feet, spread over several climbs and descents. Boulder County doesn't publish an official gain figure for the loop, so treat this as a range rather than a measured number.
- Difficulty
- Boulder County rates the loop moderate, but it hikes strenuous: steep creek-canyon climbs and a long stone staircase. Don't let the keyword ranking fool you; the terrain is real.
- Dog policy
- Dogs allowed, on a leash at all times (Boulder County rule). The Voice and Sight tag does not apply here.
- Fee
- Free. No entry or parking fee.
- Parking
- Walker Ranch Loop Trailhead (46 spaces, restroom) and Ethel Harrold Trailhead (18 spaces, restroom), both off Flagstaff Road. Both fill fast; the Meyers Homestead / Meyers Gulch Trailhead usually has room.
- Best season
- Late spring through fall. It's a high-elevation loop, so snow and mud linger into spring and return by late fall.
Walker Ranch snapshot
- Trail type
- Loop. The 7.9-mile Walker Ranch Loop links four connected trails and can be hiked in either direction.
- Time on trail
About 3 hours 30 minutes to 5 hours.Our estimate
Our own arithmetic, not an agency figure. Boulder County publishes no hiking time and no official elevation gain, so we work from its 7.9 miles and the midpoint of this page's 1,400 to 1,600 foot range, using Naismith's rule (one hour per 3 miles, plus one hour per 2,000 feet of climb), then add half again at the top end for stops, the stone staircase and altitude.
- Drive time
From downtown BoulderAbout 30 minutes, 9 miles, from the Pearl Street Mall, up Flagstaff Road.
From downtown DenverAbout 1 hour 5 minutes, 35 miles, from downtown Denver.
Approximate, from road routing in free-flowing traffic. Flagstaff Road is steep, narrow and switchbacked, so it drives a good deal slower than nine miles sounds.
- Restrooms and water
RestroomsAt all three trailheads: Walker Ranch Loop, Ethel Harrold and Meyers Gulch, each with picnic tables (Boulder County).
Drinking waterNot published. Boulder County lists no drinking water at these trailheads, and South Boulder Creek is not a safe drinking source, so carry everything you need for a long day.
- How busy it gets
Boulder County counts visits here, and the numbers are blunt. Saturday (26 percent) and Sunday (25 percent) take just over half the week between them, and the county's by-hour chart puts the peak in the middle of the day, roughly 11 a.m. to 1 p.m. Two thirds of all visits (68 percent) start from the Loop Trailhead. The county's own advice: the Loop and Ethel Harrold lots are often full, and Meyers Gulch usually has room.
Boulder County Parks and Open Space, Walker Ranch visitation data.
Trail type, restrooms and crowd figures on this page come from the managing agency. Time on trail and drive time are our own arithmetic, labeled as estimates, because no agency publishes them. Where an agency publishes nothing, this block says so instead of borrowing a number from somewhere else.
Walker Ranch at a glance
Walker Ranch is where Boulder hikers and mountain bikers go when they want a real day in the foothills, away from the crowds at Chautauqua. The signature route is the 7.9-mile Walker Ranch Loop, which strings together sweeping overlooks with drops down into the South Boulder Creek canyon. It's a rugged, varied loop: forest, granite, creek, and a famous run of stone steps.
Getting there
Walker Ranch sits southwest of Boulder off Flagstaff Road, up toward Gross Reservoir. The drive climbs Flagstaff from town, which is scenic but slow and winding, so give yourself time. It's high country, noticeably cooler and more exposed to weather than the trails in town.
Walker Ranch parking
The main lot is the Walker Ranch Loop Trailhead, with 46 spaces and a restroom. Ethel Harrold Trailhead adds another 18 spaces and a restroom. Both of these fill fast on good-weather weekends. Boulder County's own tip: the Meyers Homestead (Meyers Gulch) Trailhead usually has parking when the loop lots are full, so it's a smart backup.
The Walker Ranch Loop
The loop is made of four connected trails and can be hiked in either direction. Its most talked-about feature is a roughly 500-foot section of cliff-like stone steps down to the creek, steep enough that it isn't recommended for horses. Because the route climbs out of the canyon more than once, the elevation adds up even though no single climb is huge. Boulder County calls it moderate; most hikers finish it feeling like they earned the "strenuous" label instead.
Mountain biking Walker Ranch
Walker Ranch is a classic Front Range mountain-bike loop, and it rides technical: rocky, rooty, steep in places, with the stone staircase that most riders walk. Bikes are allowed on designated trails, and e-bikes are not. Riders should know the loop's direction and yield etiquette and be ready to share narrow trail with hikers and horses.
Dogs at Walker Ranch
Dogs are welcome but must be leashed at all times, per Boulder County rules. This is county open space, so the off-leash Voice and Sight tag that works on Boulder's Open Space and Mountain Parks (OSMP) trails doesn't apply here. Bring plenty of water; the loop is long and the creek isn't a safe drinking source.
Best season and conditions
Late spring through fall is prime. Because Walker Ranch is higher and more shaded than the in-town trails, snow and mud hang on into spring and come back early in fall, and the stone steps get treacherous when wet or icy. Check conditions and fire restrictions before you drive up.
Nearby trails and guides
- All hikes in Boulder: the full hiking hub, sorted by difficulty.
- Mount Sanitas: a shorter, steeper in-town climb.
- Royal Arch Trail: another rocky climb, this one under the Flatirons.
Walker Ranch FAQ
How long is the Walker Ranch Loop?
Boulder County lists the Walker Ranch Loop at 7.9 miles. Most people take about four hours, more if they stop at the creek or the overlooks.
How hard is the Walker Ranch Loop?
Harder than it looks on paper. Boulder County rates it moderate, but the loop drops into and climbs out of the South Boulder Creek canyon more than once, including a roughly 500-foot section of cliff-like stone steps. Expect a strenuous day, not a stroll.
Where do you park for Walker Ranch?
The main lot is the Walker Ranch Loop Trailhead off Flagstaff Road, with 46 spaces and a restroom; Ethel Harrold Trailhead has another 18 spaces. Both fill quickly on nice weekends. The Meyers Homestead (Meyers Gulch) Trailhead usually has parking when the others are full.
Can you mountain bike at Walker Ranch?
Yes. Walker Ranch is a well-known mountain-bike loop, and bikes are allowed on designated trails (no e-bikes). It's a technical, rugged ride with steep, rocky sections and stairs, so riders should know the yield and direction etiquette and be ready to hike-a-bike the steps.
Are dogs allowed at Walker Ranch?
Yes, but they must be on a leash at all times under Boulder County rules. The off-leash Voice and Sight tag used on Boulder's OSMP trails does not apply on county open space like Walker Ranch.
Sources
Facts on this page are drawn from these authoritative sources:
Last checked .