Green Mountain and Bear Canyon Loop

The terrain varies significantly. The Bear Canyon sections are generally smoother, with wide-open spaces and meadows. In contrast, the Green Mountain portions feature a mix of dirt and rocky paths, substantial elevation gains, and can include log steps. Be prepared for rugged and technical sections, especially around areas like Saddle Rock, which even has a ladder in one steep part.

The loop offers several notable features. You'll get expansive views of the iconic Flatirons from the Bear Canyon area. As you ascend Green Mountain, you'll pass by Amphitheater Rock and Saddle Rock. Reaching the Green Mountain Peak provides panoramic views, especially of the Indian Peaks to the west. You'll also cross the Skunk Creek Bridge and follow sections of Bear Canyon Trail.

Parking is available at various trailheads that connect to this loop, such as the Chautauqua Trailhead or the NCAR Trailhead. Parking can be limited, especially on weekends and during peak seasons, so arriving early is recommended. Some areas may have paid parking or time restrictions.

Yes, Boulder offers public transport options that can get you close to trailheads accessing this loop. The City of Boulder's HOP bus route and other local bus services often have stops near popular access points like Chautauqua Park. Check the local transit schedules for the most current information.

Yes, dogs are generally allowed on trails within Boulder Open Space and Mountain Parks, including this loop. However, specific regulations apply. Dogs must be on a leash at all times unless they have a Voice and Sight Tag and are under effective voice control. Always carry waste bags and clean up after your pet.

The loop is accessible year-round, but the best time for jogging is typically spring, early summer, and fall. During these seasons, temperatures are milder, and the scenery is vibrant. Summer can be hot, so an early morning start is advisable. Winter jogging is possible but requires appropriate gear like microspikes due to potential ice and snow, especially on higher elevations and shaded sections.

Generally, there are no entrance fees or permits required to access the trails themselves within Boulder Open Space and Mountain Parks. However, some parking areas, particularly at popular trailheads like Chautauqua, may require payment or have time limits. Always check signage at your chosen trailhead for specific parking regulations.

The diverse ecosystems along the loop offer opportunities to spot various wildlife. You might encounter mule deer, various bird species, and smaller mammals. Keep an eye out for raptors soaring overhead. Remember to observe wildlife from a distance and never feed animals.

Yes, this extensive loop intersects with numerous other trails within the Boulder Open Space and Mountain Parks system. The route utilizes sections of trails such as the E.M. Greenman Trail, Green Bear Trail, Bluebell-Baird Trail, Saddle Rock Trail, Green Mountain West Ridge Trail, Amphitheater Trail, and the Mesa Trail, among others.

Given the varied terrain and significant elevation changes, wear sturdy trail running shoes with good grip. Dress in layers, as weather conditions can change rapidly, especially at higher elevations. Bring plenty of water, snacks, sun protection (hat, sunscreen), and a map or GPS device. Trekking poles can be helpful for the steeper sections.

This loop is rated as difficult for jogging and is generally not recommended for beginners. It involves a significant distance of over 17 km (10 miles) and substantial elevation gain (over 800 meters or 2,600 feet). While parts of Bear Canyon are easier, the Green Mountain sections are challenging with steep, rocky ascents and descents. A good level of fitness and experience with trail running is required.