Boulder Gulch Trail to Velocity Basin

The trail typically starts near Silverton, Colorado. You'll begin on a relatively flat dirt road for about 1.5 miles before transitioning to the singletrack. Specific parking details can vary, so it's always best to check local resources or maps for the most current trailhead access points in the Silverton area.

The terrain is highly varied and challenging. It starts with a dirt road, then transitions to a steadily climbing, steep, and smooth singletrack through Boulder Gulch. Higher up, it becomes rugged alpine tundra with rocky, technical, and very steep, loose sections. The descent into Velocity Basin is also steep and technical. Expect mostly exposed sections, with a few patches of forest.

Yes, dogs are generally allowed on this trail as it's located within the San Juan National Forest. However, always ensure your dog is on a leash and that you pack out all waste. Be mindful of the challenging terrain and high elevation, which can be strenuous for pets, and watch out for wildlife like moose, especially in lower sections.

The best time to jog this trail is typically from late June through early September. Even in mid-June, snow patches can be present at higher elevations, making navigation difficult. Summer offers the best chance for clear trails and vibrant wildflowers, but be prepared for rapidly changing alpine weather, including afternoon thunderstorms and cool temperatures.

Generally, there are no specific permits or entrance fees required for day use on the Boulder Gulch Trail itself within the San Juan National Forest. However, it's always wise to check the official U.S. Forest Service website for the San Juan National Forest for any updated regulations or specific area restrictions before your visit.

You'll encounter astounding alpine scenery with incredible views. Highlights include the Boulder Gulch - South Fork Trail Junction, and the breathtaking Velocity Basin, which features a beautiful alpine lake nestled below towering Storm Peak. From the pass between Storm Peak and Tower Mountain (over 13,000 feet), you'll get panoramic vistas. The route also passes through aspen groves, offers views of waterfalls, and features wildflower meadows.

Yes, the route primarily follows the Boulder Gulch Trail for a significant portion. It also passes through sections of the South Fork Trail. While not directly on this route, the Tower Mountain Summit Trail is in the vicinity.

The estimated duration for jogging this 24.2 km (15-mile) route is around 4 hours and 2 minutes. This is for the full loop, which includes significant elevation gain and technical sections, so individual times will vary based on fitness and conditions.

Given its 'difficult' grading and alpine environment, you should bring sturdy trail running shoes with good grip, plenty of water, high-energy snacks, layers of clothing (even in summer), rain gear, a map and compass or GPS device (cell service is limited), sun protection, and a first-aid kit. Trekking poles can also be very helpful for the steep and technical sections.

Yes, this trail is often part of a larger loop that includes a dirt 4WD road (Route 110A) back to Silverton. The benefit of this loop is that it balances the challenging alpine singletrack with a more runnable, gentler descent on the dirt road, offering a varied experience and a more direct return to Silverton.

This trail is consistently graded as 'difficult' and requires a very good level of fitness, sure-footedness, and alpine experience. You'll encounter significant elevation gain (over 1,500 meters or 5,000 feet) and technical terrain at high altitudes, so it's not suitable for beginners or those new to strenuous mountain jogging.