St. Regis, MT, United States · Saturday, June 20, 2026

Fixed Distance 50 mi

Trail Rail Run 50 Mile

Race completed

80 km Distance

not publishedn/a Climbing

4.0 est Grit · Challenging

Calculated from 80 km alone — the organiser has not published an elevation profile. Read 4.0 as a floor, not a verdict.

47.3005° N, 115.1065° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 14 hours 10:30 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. About average for a 50 mi. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~45 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 19°C

Night low 7°C

Rainfall Mostly dry

Daylight 15 h 56 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 1276 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail.

Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition80 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 80 km, without the bounce.
HeadlampsA 14 h limit puts you out there after dark.
GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.

Salomon

Aero Glide 4 Grvl

$159.95 ★★★★★ 4.5

Salomon

Ultra Glide 4

$159.95 ★★★★★ 4.6

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Course Notes

Run the old Milwaukee and Northern Pacific Railroad grades from Mullan, Idaho to St. Regis, Montana near the summer solstice. Gentle grades, beautiful scenery and moderate temperatures combine for an ultra great experience while crossing the Rocky M

Similar races

Other 50 mi trail ultras, closest in distance first.