The East Boulder Trail stretches 6.15 miles from the Teller Farms – South Trailhead off Arapaho Road to the Gunbarrel Farm Trailhead in the Heatherwood neighborhood of Gunbarrel. The trail passes through the working historic ranch of Teller Farms, White Rocks Nature Preserve, Lower Boulder Creek Conservation Area and rolling hills of a short grass prairie. Groomed trails and mild grades in a bucolic setting make this a 4-season favorite among trail runners, families and birdwatchers.

Prairie Dog colonies are found throughout the Teller Farm area

The East Boulder Trail provides wide views of Boulder's Front Range

Geese are common in the wetland areas of Teller Farm

Big skies and wide open spaces are the hallmarks of Teller Farm and the East Boulder Trail

Teller Lake - a popular fishing spot and haven for area wildlife

Rising through the short grass prairie over White Rocks Preserve

The Boulder Front Range from the Teller Farms - South Trailhead

Snow-capped peaks frame the White Rocks formations adjacent to the East Boulder Trail

Prickly pear cactus growing just off trail

A pair of geese walk towards a pond in Teller Farm

The trail runs through the White Rocks Nature Preserve - named for its whitish-yellow rock bench formations

Short grass prairie is critical habitat for prairie dogs, badger, rattlesnakes, coyote and raptors

The historic Teller Farm area is rife with grassland wildlife