Limestone cliffs and timbered basins of the Big Snowy Mountains under a Montana sky

Saturday, August 28, 2027

Big Snowy Mountains  ·  Lewistown, Montana

Turn me loose, set me free

100 miles, 36 hours, in a piece of Montana few people see.

Somewhere in the middle of Montana lies an isolated mountain range, rising above the vast prairie and ranchlands. A place sheltered from the rest of the world, where small communities, working cattle ranches, and generations of Western tradition remain woven into the landscape.

The Snowy Ridge Classic is a 100-mile ultramarathon designed to showcase this special landscape and challenge those willing to experience it on foot. This race is a reflection of the land, the people, and the way of life that defines the heart of Montana. Self-reliance is a way of life, hard work is second nature, and every mile is earned.

100
Miles
18,800
Feet of gain
36
Hour cutoff
8,680
Ft high point
10
Aid station stops
Open shale ridgeline on the crest of the Big Snowies
The Big Snowy Mountains

Remote, rugged, and overlooked.

The Big Snowies are defined by two expansive ridgelines, with many smaller ridges branching from the main spine. Long, sustained climbs carry runners from high prairie through timbered slopes into rugged alpine terrain. The cooler, more temperate northern side of the range contrasts with the drier southern exposures.

Along the way, runners encounter deep mountain canyons, dark timbered forests, flowing creeks, cascading waterfalls, craggy overlooks, vast rocky shale ridge tops, limestone caverns, the Big Snowy Ice Caves, and a picturesque alpine lake. Rugged trails connect these features across long stretches of remarkably quiet backcountry.

From the open prairie. Through timbered drainage bottoms. Clear to the alpine ridgelines. And on and on again.

Crystal Lake, the alpine lake runners circle near mile 88
The course

One expansive loop across both ridgelines.

The race begins and ends on the same private ranch, with access granted exclusively for the Snowy Ridge Classic. From there the course travels primarily through the Helena–Lewis and Clark National Forest, entering two Wilderness Study Areas and trailheads managed by the Bureau of Land Management.

The course traverses the full length of both major ridgelines, climbing in and out of the high country through deep mountain drainages. It tops out on Old Baldy at roughly 8,680 feet, drops to the Red Hill Road foothills, returns across the range on the dark timbered lowline trails, and finishes with a lap of Crystal Lake and a detour to the Crystal Cascades waterfall, where you pick up your own buckle and carry it the final miles.

Registration

Race day is August 28, 2027.

Entry is limited and all runners must meet the qualifying standard in the race rules. Registration, waitlist, and refund protection are handled through UltraSignup.

Know before you go

This course asks you to arrive prepared.

Aid stations and support are available, but self-reliance and sound judgment come first. There are long stretches of quiet backcountry, faint or nonexistent trail on the alpine traverses, and weather that changes fast.

Origin

A race like this doesn't create character. It reveals it.

Nearly a decade ago, while training for ultramarathons, I discovered the Big Snowy Mountains of Central Montana. I knew immediately that I'd stumbled upon something special. Hidden in plain sight, these mountains offered genuine wild country, remarkable solitude, and an old-school Montana character increasingly difficult to find.Steven Graham, Founder & Race Director
Read the full story
A runner on singletrack through a mountain meadow below the main ridge
Crystal Cascades waterfall
Crystal Cascades
Entrance to the Big Snowy Ice Caves
Ridge Caves
Limestone tower above Crystal Lake
Grandview
A runner descending a grassy ridge under a storm sky
Halfmoon