South Boulder Creek - West Trailhead
Always bring a face covering when leaving your home. Anyone over 12 years old is required to wear face coverings anytime they cannot maintain six feet of distance at OSMP trailheads and when passing others on trails. If visitors are at least 6 feet away from others, they do not need to wear a face covering over their nose and mouth. However, if visitors reach 6 feet distance to someone else on the trail, they should put the covering back over their nose and mouth. Learn more.
Limited parking on Flagstaff Mountain. Flagstaff Mountain continues to be busy on the weekends. Parking is extremely limited. For your safety & the safety of others, do not park along the side of the road. Illegally parked vehicles can be ticketed and towed. Consider visiting different locations. Plan your visits through OSMPTrails.org or download the Boulder AreaTrails App.
Siempre traigan un cobertor facial cuando salgan de su hogar. Cualquier persona mayor de 12 años requiere usar un cobertor facial cuando no pueda mantener una distancia de 6 pies (2m), ya sea en las entradas de los parques o cuando pasen a otros en el sendero. Si los visitantes están a más de 6 pies (2m) de otros, no necesitan usarlo para cubrirse la nariz y la boca. Sin embargo, si los visitantes se acercan a 6 pies (2m) o menos de distancia de alguien en el sendero, deben cubrirse la nariz y la boca.
Stay on trail and walk through mud. If needed, step off to maintain distance. Please avoid stepping on vegetation. If possible, step onto a rock or a bare spot to let others pass, then step back on the trail. Politely announce yourself if you need to pass others. Traveling off trail, whether hiking, running or biking, can permanently damage vegetation and widen trails. Learn more.
Proteja a las personas, quédese en casa. Si es indispensable salir, practique la recreación responsable. Mantenga 6 pies de distancia física, use cobertores de cara y evite viajes innecesarios. Las áreas de refugio y picnic están cerradas. Para más información.
1401 South Foothills Highway. West of Highway 93 at Thomas Lane, approximately 0.5 miles north of the intersection of Highway 93 and Eldorado Springs Drive.
Please check for Trail & Area Closures.
You are responsible for knowing and complying with all closures and OSMP rules & regulations.
Parking lot just south of Thomas Lane at the trailhead, with a parking fee. Information on parking permits & fees.
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.
South Boulder Creek Trail is accessed from the south side of the parking lot. This trail passes by tall and mixed grass prairie as it meanders west along South Boulder Creek. Its terminus is at the southeast end of the Mesa Trail which provides extensive trail access along the foothills, including routes to the top of South Boulder and Bear Peaks.
Big Bluestem Trail is accessed by hiking westward on Thomas Lane approximately 0.3 miles (**Please note that parking is not allowed on Thomas Lane). This trail intersects the Mesa trail at two locations: 1) along the lower southern portion of the Mesa Trail, 2) terminus at the upper Mesa Trail before it passes the western most point of the South Fork of the Shanahan Trail.
An easy four mile loop is to hike the South Boulder Creek Trail to the Mesa Trail north to the Big Bluestem Trail and east to the trailhead.
Located at the trailhead.
There are two picnic tables available at the trailhead. Both are partly shaded and near a pond. Grills and stoves are prohibited.
Bicycles are not allowed on the trails accessed from this trailhead.
Learn about bringing your dog to OSMP. All dogs must be leashed in the Trailhead Leash Area. Dogs are prohibited on the Greenbriar Connector Trail. Dogs must be on a hand-held leash on Lower Big Bluestem Trail. On most other 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. A dog station is available to aid in the collection of dog excrement.
Horses are allowed on most trails. On-trail riding is encouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.
These are excellent trails to explore the grassland ecosystem and the lower range of the ponderosa pine forest. Mule deer commonly graze this area in the early morning. Coyote and fox can also be observed. The area also provides hunting grounds for many of our local raptors. In early May, wild irises bloom in great numbers along the upper Big Bluestem trail.
- An area of ranching and cattle grazing.