Left Hand Trailhead
Always bring a face covering when you leave home and maintain 6 feet of distance
- You will need a face covering to visit Boulder’s open space trails and parks. Always bring one with you when you leave home.
- Place it over your nose and mouth when you can’t maintain 6 feet of distance from others.
- Wear it around your neck or wrist when no one else is around.
- Parents should help children older than 2 years old properly wear a face covering.
- Help protect vulnerable community members and each other.
Don’t forget: Keep the space in open space! Always stay at least 6 feet from others you don’t live with or haven’t agreed to have close contact with.
Please follow these other responsible recreation reminders:
- Visit OSMPTrails.org to see current trail closures, historical data that shows areas of high and low open space use and trails that are wider than 6 feet. See when trails are busiest through our Visitation Data Explorer.
- Protect first responders. Know your limits and don’t take unnecessary risks.
- Plan ahead and consider recreating closer to home as parking is extremely limited - especially on Flagstaff Mountain.
- Remember: Leave No Trace! Pick up trash and dog waste. Stay on trail and walk through mud. Step off if you need to maintain distance but quickly step back on trail.
- For more responsible recreation reminders, please visit the Covid-19 Recovery page.
One mile east of Highway 36 on Neva Road.
Please check for Trail & Area Closures.
You are responsible for knowing and complying with all closures and OSMP rules & regulations.
Parking lot at trailhead large enough to accommodate horse trailers.
Please keep your car doors locked and your car windows rolled up at all times while leaving your vehicle parked at OSMP trailheads. Also consider leaving important valuables at home or take them with you while visiting open space. To report suspicious activity please call City of Boulder Dispatch 303-441-3333 or Boulder County Dispatch 303-441-4444. For crimes in progress, call 911 immediately.
An RTD bus passes very close to this trailhead. Learn about Taking the Bus to OSMP.
Left Hand Trail provides hiking, bicycle and equestrian access to Boulder Valley Ranch trails and offers scenic overlook of Lefthand Valley Reservoir, although the reservoir itself is on private property.
Available at pavilion 3/4 mile southwest of trailhead, only available through reservation with Boulder County Parks and Open Space Department.
Allowed on Left Hand Trail, Eagle and Sage trails on Boulder Valley Ranch. Bicycles may be ridden only on those trails that are posted with the international bicycle symbol. Other bike trails on OSMP.
Learn about bringing your dog to OSMP. Dogs must be on a hand-held leash on the designated trail.
Allowed on most trails. Off-trail riding is discouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.
Birds of prey are frequently sighted in this area. Coyotes and mule deer have been sighted. Rattlesnakes might be encountered during summer.
- Foundations of homestead near pavilion.