Green Mountain and Hayden Trail Loop

The Green Mountain and Hayden Trail Loop is approximately 6.5 kilometers (4 miles) long. For jogging, it typically takes around 50 minutes to complete, depending on your pace and fitness level. The route involves a moderate elevation gain, which can influence your overall time.

This loop is generally considered moderate in difficulty. While it offers a rewarding experience, beginners should be prepared for a significant uphill challenge with around 190 meters (623 feet) of elevation gain. The initial ascent on the Green Mountain Trail features gradual switchbacks, but the overall treeless terrain means constant sun exposure, which can add to the challenge, especially in warmer months. It's a good option for beginners looking for a moderate challenge, provided they are adequately prepared.

The terrain is characterized by hilly, treeless slopes. You'll encounter a mix of gradual switchbacks on the ascent, old jeep roads, and grassy sections. Due to the lack of tree cover, the trail is very exposed to the sun. The path can be rocky in places, but it's generally well-maintained for jogging.

The Green Mountain and Hayden Trail Loop offers consistently stunning panoramic views due to its treeless nature. As you ascend, you'll be treated to exceptional vistas of the Denver skyline, the unique Dakota Hogback formation, and Red Rocks Park. To the west, you can see the snow-capped Rocky Mountains, including prominent peaks like Mount Evans, Pikes Peak, and Longs Peak. Be sure to take in the scenery from the Viewpoint John O. Hayden Trail.

The best seasons for jogging this loop are spring and fall, when temperatures are milder. Snow-free periods in winter can also be pleasant. Summer runs can be challenging due to the intense sun exposure on the treeless mountain. Spring also brings colorful blossoms to the open slopes, adding to the scenic beauty.

Yes, dogs are allowed on the Green Mountain and Hayden Trail Loop. They must be kept on a leash at all times. Please remember to bring enough water for both yourself and your dog, especially given the trail's sun exposure.

The loop is located within William F. Hayden Park in Lakewood, Colorado. There are designated parking areas available at the park trailheads. It's advisable to arrive early, especially on weekends, as the park is very popular.

No, there are typically no permits or entrance fees required to access William F. Hayden Park or its trails, including the Green Mountain and Hayden Trail Loop. It is a public park managed by the City of Lakewood. You can find more information on the lakewoodco.gov website.

William F. Hayden Park is home to diverse wildlife. While jogging, you might see various birds and small mammals. It's important to be aware that rattlesnakes are present in the park, especially as the weather warms in late spring and summer. Always maintain a safe distance and exercise caution if you encounter any wildlife.

Yes, the Green Mountain and Hayden Trail Loop utilizes sections of several other trails within the park. The route includes parts of the Green Mountain Trail and the John O. Hayden Trail. It also passes through sections of the Summit Loop Trail, South Foothill Drive Access Trail, and Rooney Valley Trail.

This is a very popular destination for hikers, mountain bikers, and trail runners due to its convenient location near Denver and excellent views. If you prefer a less crowded experience, consider visiting on weekday mornings. As a multi-use trail, be mindful of others, especially mountain bikers; while pedestrians technically have the right of way, stepping aside is a courteous gesture.

Given the treeless and exposed nature of the trail, it's crucial to bring plenty of water, especially during warmer months. Sun protection such as a hat, sunglasses, and sunscreen is highly recommended. Wear appropriate jogging attire and sturdy trail running shoes, as some sections can be uneven. Layers are advisable during spring and fall for changing weather conditions.