• Restroom
  • Picnic Area

Trailhead Description

Left Hand Trailhead provides access to Left Hand Trail. Left Hand Trail provides hiking, biking and equestrian access to Boulder Valley Ranch trails and offers a scenic overlook of Left Hand Valley Reservoir, although the reservoir itself is on private property. This area is closed when conditions are too muddy; please check the trail map for closures before visiting.


No facilities at the trailhead, but there are restrooms managed by Boulder County Parks and Open Space at the picnic pavilion 3/4 mile southwest of the trailhead.

Picnic Facilities

Available at pavilion 3/4 mile southwest of trailhead, only available through reservation with Boulder County Parks and Open Space Department.


One mile east of Highway 36 on Neva Road.


The Left Hand Trailhead has 36 standard parking spaces.

Average Visitation

Left Hand Trailhead Average Summer Visitation

Area Info

Bike Regulations

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.

Dog Regulations

Boulder Valley Ranch Area Dog Regulations Map

Learn about bringing your dog to OSMP. Dogs must be on a hand-held leash at all times on the Left Hand Trail.

Horse Regulations

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.

Nearby Trailheads