Trail Overview
McCarty Creek Trail is a moderately challenging, 10.5-mile county road ideal for intermediate off-roaders seeking scenic climbs and engaging obstacles in the Helena National Forest. Beginning near the historic town of Boulder, Montana, this route quickly transitions from flat valley roads into a rugged ascent through the timber-covered slopes of the Elkhorn Mountains. The trail gains around 2,000 feet of cumulative elevation along the way. Drivers can expect a combination of forest dirt roads and technical rock gardens, with embedded boulders, exposed bedrock, off-camber obstacles, and short, rocky climbs. While many sections are easy to navigate, the more technical features require slow, deliberate driving and careful tire placement. This route is highly enjoyable during the summer and remains a popular option for early winter drives before deep snow sets in.
As the trail winds past Black Canyon and McCarty Creek, it offers spectacular views of the surrounding gulches and forested ridges. The route can be driven as an out-and-back trail or combined into a scenic loop by connecting to Forest Service Road 258 and heading south before returning to Boulder via Montana Highway 69. High-clearance four-wheel-drive vehicles or capable OHVs are recommended to navigate the steeper gradients, which reach a maximum pitch of nearly 20 degrees. The trail's eastern portion borders mining-rich historical areas near Queen and Seven-Up Gulch, making it an excellent adventure for those looking to combine technical driving with regional exploration.
Difficulty
Expect long stretches of relatively mild dirt and rocky trail interspersed with more demanding sections featuring rock gardens, larger ledges, uneven ruts, and off-camber obstacles that require slow, deliberate driving.