Mount Jumbo Wildlife Management Area loop via Marshall Grade

The main access point for this route is at the end of Lincoln Hills Drive, which is off Rattlesnake Drive in Missoula. You'll find a large dirt parking area conveniently located at the trailhead.

The best time to cycle this route is generally outside of the winter closure period. Mount Jumbo is a critical winter range for elk, so most of the area closes to all recreational use from approximately December 1 to May 1 for the North Zone (which includes Marshall Grade). Always check local regulations for exact dates, but late spring through fall are typically ideal.

No, there are no specific permits or entrance fees required to access the Mount Jumbo Wildlife Management Area for recreational use. However, always be mindful of seasonal closures to protect wildlife.

While dogs are generally allowed in the Mount Jumbo Wildlife Management Area, specific rules may apply, especially during certain seasons or in particular zones. It's always best to check current local regulations regarding leash laws and any restrictions, particularly given its status as a wildlife management area.

The terrain is varied and challenging. You'll encounter a mix of surfaces, with a significant portion being unpaved (around 16.2 km) and some paved sections (140 m). It includes paths (8.87 km) and singletrack (7.38 km), along with some street segments (2.19 km). Expect steep sections, rocks, roots, and uneven ground, making it suitable for touring cyclists with appropriate bikes and good fitness.

This route offers expansive and breathtaking views. From higher points, you can see the peaks of the Rattlesnake, Bitterroot, Sapphire, and Garnet mountains, as well as the entire Missoula Valley. You'll also enjoy views of Woody Mountain and the Mount Jumbo Wildlife Management Area itself, with open slopes, timbered flanks, Douglas firs, Ponderosa pines, and grassy meadows.

Yes, the route utilizes and intersects with several other trails within the Mount Jumbo network. You'll find yourself on sections of Marshall Grade, Three Larch, Woods Gulch, Woods Ridge, Jumbo Saddle Road, Sidewinder, Juke and Jive, Son of Sidewinder, Lower Sound of Music, Sheep Mountain Trail, Sheep Mountain Cutoff, Jumbo Backbone, Jumbo Saddle Hiker, Unwind, Sound of Music, Free Falling, Saddle Loop, Power Ridge, Contour, Marshall Woods, ZTD, and Short & Steep.

Mount Jumbo is a vital wildlife management area, especially as a winter range for elk. While sightings are never guaranteed, you might encounter elk, deer, and various other wildlife species. Remember to keep a respectful distance and observe from afar, particularly during sensitive seasons.

No, this route is generally considered 'difficult' for touring cycling and requires very good fitness due to significant elevation gain and varied, often technical terrain. Some segments may even necessitate pushing your bike. It is not recommended for beginners or families looking for an easy ride.

For a touring cyclist, the estimated duration for this 18.4 km (11.4 miles) loop is around 2 hours and 2 minutes. However, this can vary significantly based on your fitness level, the type of bike, and how often you stop to enjoy the views.

Beyond the challenging terrain and fitness requirements, be aware of seasonal closures (typically December 1 to May 1) which are in place to protect wintering wildlife and recreationists from avalanche danger on steeper slopes. Always check current conditions and closures before heading out. Also, as a popular area, you'll likely share the trails with hikers and mountain bikers.