Siena Reservoir Trail

Teller Farms (East Boulder) Trail is an out-and-back trail that takes you by a lake located near Lafayette, Colorado.

This 4 mile loop ascends only a slight amount in elevation, making for a pleasant loop in which opportunities for appreciation of the nature around you and broad vista photography are in plentiful supply. A great hike for those who may still be building their fitness, as so many trails in Boulder are just straight UP. Also great for the fitness buff trail runner who wants something to run in th...

From the parking lot, take South Flatiron Vista Trail for 2.4 miles, where you'll cross onto North Flatiron Vista Trail. In 1 mile, take the connector trail back to the trailhead. To shorten the loop to 2 miles, hike South Flatiron for just 1 mile to Prairie Vista Trail, which leads back to the connector in another mile.

Starting on the edge of a neighborhood in South Boulder, this 3.8 mile loop begins its 869 foot elevation gain by meandering through a pine forest. You can 'choose your own adventure' by exploring the handful of trails that meet up with the Shanahan Ridge Trail, such as the South Mesa Trail, Shadow Canyon Trail, and Fern Gulch Trail. If you keep heading west, the trail will pass by a large slab...

Have you ever reached the bottom of a hike with some friends and thought, 'That was nice, but I'd still like to hike more... a lot more.'? Then the Skyline Traverse is for you. Instead of hiking just Green Mountain or Bear Peak, the Skyline Traverse links South Boulder Peak, Bear Peak, Green Mountain, Flagstaff Mountain, and Mount Sanitas into one long day. After finishing this 'pleasant stro...

Doudy Draw Trail is an out-and-back trail where you may see beautiful wildflowers located near Boulder, Colorado.