Winter conditions exist across open space!
- Trails may be icy & slick.
- Wear appropriate gear, such as traction devices for your shoes/boots.
- Do not walk on ice-covered lakes and ponds.
People enjoy open space for physical, emotional and mental health. Remember to always be courteous. Don't forget:
- Only recreate with household members.
- Wear a face covering when passing others.
- Stay on trail/walk through mud. Avoid stepping on vegetation.
- 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.
Turn east from Highway 36, north of Boulder. The trailhead is about two miles north of Jay Road and west of North 55th Street.
Please check for Trail & Area Closures.
You are responsible for knowing and complying with all closures and OSMP rules & regulations.
Parking lot at the trailhead.
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.
Eagle Trail (2.6 mile from Eagle Trailhead to Mesa Reservoir) extends west through Boulder Valley Ranch to its terminus at the Foothills Trailhead. An easy loop is provided by taking the Eagle Trail to the Sage Trail (1.8 mile ). This trail also provides access to the Mesa Reservoir area and beyond to the Foothills Trailhead.
This area is identified as being popular with people using wheelchairs. See the Accessible Trails Page for details.
No facilities available.
No picnic facilities.
Bicycles are allowed on the Eagle and Sage trails accessed from this trailhead. 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. All dogs must be leashed in the Trailhead Leash Area. Beyond the trailhead, dog control requirements vary from trail to trail, so carefully watch for dog regulation signs at trailheads and trail intersections. On most OSMP trails in this area, 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.
Horses are allowed on all trails. On-trail riding is encouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.
This trailhead is named for the large birds of prey that frequent the area and is a wonderful place to view our winter raptors -- bald and golden eagles and many kinds of hawks. Other wildlife includes prairie dogs, coyotes, foxes and snakes.
- Boulder Valley Ranch is a historic and presently working ranch.