8331 Arapahoe Rd at the end of the gravel access road (White Rocks Trail)
Get DirectionsTeller Farm South provides access to the south end of the East Boulder Trail.
The trailhead is open from 5 am to 11 pm daily.
Located at the trailhead.
Picnic tables at the trailhead and parking area. Grills and stoves are prohibited.
On the north side of Arapahoe Road between 75th and 95th streets at the end of White Rocks Trail.
The JUMP bus stops along Arapahoe Road at the entry to the short gravel access road (White Rocks Trail) that leads directly to the trailhead.
Teller Farm South has 32 standard parking spaces and one ADA space.
This area is identified as being popular with people using wheelchairs. See the Visitors Experiencing Disabilities Page for trail details.
Bicycles are allowed along the East Boulder Trail. Bicycles must remain on-trail and 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 entire length of the East Boulder Trail. Learn more in the Guide to Electric Bikes on Open Space.
Teller Farm 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 are not allowed at Teller Lake No. 5 and must be leashed within 100 yards of the water at Teller Lake South. Dogs are not permitted north of Valmont Road in the White Rocks Nature Preserve.
You can help to keep you and your pets safe by keeping them off OSMP's icy lakes. Many times, pets that fall into icy waters will be able to get out or self-rescue without assistance.
If it happens to you while visiting OSMP and your pet is unable to get out of the water, stay off the ice! Call 911 and Boulder Fire-Rescue will respond and rescue your pet!
Visit the Fishing on OSMP page for more information about fishing opportunities and regulations.
Equestrians are allowed throughout the length of the East Boulder Trail. Off-trail riding is not allowed in the Lower Boulder Creek Habitat Conservation Area (HCA), and is discouraged in other areas to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.
There is a variety of waterfowl and fish at Teller Lake. Grass carp were introduced into the lake to control the growth of pond vegetation. State fishing regulations apply. All smallmouth and largemouth bass in possession must be 15 inches in length or longer. Raptors, coyote, fox and deer may also be observed in this area.
