Big Sheep Creek Back Country Byway | Montana

Tucked into the secluded southern reaches of Montana near Dell, the Big Sheep Creek Back Country Byway offers a quiet, rugged drive through part of the untamed Rockies. From Interstate 15, just north of the Montana–Idaho border, the rugged Tendoy Mountains may look impenetrable — but the Dell exit leads to a nearly hidden opening into this remote landscape (the byway is also accessible from Montana Highway 324). The route offers the opportunity to peer down into the depths of Big Sheep Creek and up into the heights of Big Sheep Canyon, passing through three distinct geological landscapes along the way: the narrow, rocky walls of Big Sheep Canyon, a broad valley framed by mountains along the Continental Divide, and — farther north — the lush, winding Medicine Lodge valley shaped by a meandering creek beneath the peak that gives it its name.

Though many years have passed, the landscape is largely unchanged from the days of early Native Americans and mountain men, offering a rare chance to experience Montana's backcountry in near-pristine condition. Stretching more than 50 miles, the route is usually passable for all types of vehicles during the summer. Plan for a relaxing three-hour drive — or take two or three days if you'd like to enjoy fishing, hiking, wildlife watching, or simply exploring the area.

Plan Ahead

The Big Sheep Creek Byway is a remote, low-traffic gravel route, and preparation is essential:

  • No services are available along the byway, and there is no potable water — bring everything you'll need
  • Rain can make gravel and dirt surfaces challenging — drive slowly and defensively, especially in wet weather, which can create slippery or hazardous conditions
  • Gasoline is available along the route, but plan your fuel stops in advance
  • Consider camping at Deadwood Campground, about 14 miles southwest of Dell, which offers several BLM sites equipped with picnic tables, campfire rings, and a vault toilet

Features and Amenities

  • Scenic views of mountains, streams, valley bottoms, and unique rock formations lining several canyons
  • Marked and unmarked hiking trails accessible from the byway
  • Wildlife viewing opportunities, including bighorn sheep, elk, and deer
  • Fishing access in clear mountain streams and lakes accessible from the road
  • Camping areas available along the route
  • Bicycle/pedestrian facilities
  • Gasoline available along the route

Byway Designation

The Big Sheep Creek BCB is designated as a Type I BLM Back Country Byway, established in 1989. It follows a low-traffic, two-lane gravel route through remote public lands.

The byway supports minimal infrastructure while promoting scenic, recreational, and educational experiences consistent with backcountry preservation goals. The route remains unchanged in type since its original designation and is currently managed by the Dillon Field Office of the BLM.

Contact Us

This site is managed by Dillon Field Office; visit their page for office hours and directions.

Adventure is at Your Fingertips

Activities

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CAMPING
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FISHING
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HIKING
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PICNICKING
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WILDLIFE VIEWING
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ACCESSIBLE FACILITY OR ACTIVITY

Addresses

Dillon Field Office
1005 Selway Drive
Dillon
Montana
59725

Directions

To explore the Big Sheep Creek Back Country Byway from the south, start at the Dell Interchange on Interstate 15. Turn south onto Westside Frontage Road and travel about 2 miles until you reach Big Sheep Creek Road, which also marks the beginning of the Byway.

Continue along the Byway for 10 miles to reach Deadwood Campground—a quiet, scenic spot with several campsites, picnic tables, campfire rings, and a vault toilet.

From the campground, follow the Big Sheep Creek Back Country Byway for nearly 12 miles until you come to Medicine Lodge Road, where the Byway continues. Turn north onto Medicine Lodge Road and travel roughly 30 miles until you reach Highway 324, just west of Clark Canyon Reservoir.

If you begin your trip from the north entrance on Highway 324, start at the Medicine Lodge Road marker and follow these stops in reverse order.

Fees

No Fee.

Additional Information