The Greenbelt Plateau Trailhead accesses the Greenbelt Plateau and High Plains Trails and has a connector trail over to the Flatirons Vista area (crossing Highway 93 at the traffic light). This area is closed when conditions are too muddy; please check the trail map for closures before visiting.
The trailhead is open from 5 am to 11 pm daily.
No facilities available.
No picnic facilities.
0.1 mile east of the intersection of Highway 128 and Highway 93 on the north side.
Parking lot on north side of Highway 128 with a parking fee. Information on parking permits & fees.
The lot has 25 standard parking spaces and one ADA space.
This area is identified as being mobility-friendly. See the Visitors Experiencing Disabilities Page for trail details.
Bicycles are allowed on most trails in the area. Bicycles may be ridden only on those trails that are posted with the international bicycle symbol.
Class 1 and Class 2 e-bikes are allowed on the Greenbelt Plateau and Hidden Valley Trails. Learn more in the Guide to Electric Bikes on Open Space.
Greenbelt Plateau Area Dog Regulations Map
Learn about bringing your dog to OSMP. Dogs must be on a hand-held leash at all times unless they meet the voice and sight control standard and display a City of Boulder Voice and Sight tag. Dog excrement removal is required by law. A dog station is available to aid in the collection of dog excrement.
Dogs must be leashed seasonally along the Greenbelt Plateau Trail to protect grassland ground-nesting birds.
Horses are allowed on most trails. Off-trail riding is allowed in the Southern Grasslands Habitat Conservation Area (HCA) with an off-trail permit. Off-trail riding is discouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.
There is an abundance of raptors, mule deer and coyotes. The surrounding land is designated as a grassland management area to protect grassland plant and animal communities. Many birds, such as killdeers, meadowlarks and vesper sparrows, nest on the ground here during spring and summer.
