Harper Lake

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...

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...

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.

The Bear Canyon Trailhead is just one of many starting points for this hike, one could also start at NCAR, North Fork Shanahan, or any point on the Mesa Trail. For the purposes of this adventure, I'll start at Bear Canyon Trailhead in South Boulder. This hike will take you about 2-4 hours depending on time of year and conditions (another hour or so if you want to go all the way to Bear Peak). ...

The NCAR Hill Climb, so named because it ends at the National Center for Atmospheric Research, is popular with cyclists, but is a great choice for runners as well. Follow the NCAR - Table Mesa Trail to the top, with beautiful views of the Flatirons and surrounding hills during any season.Make sure to stop in at NCAR when you reach the top! The facilities have free entry, and feature interesting...