Iron Mountain 40 Mile Trail Run

Race completed

64 km Distance

2,600 m Climbing

7.1 Grit · Hardcore

36.6337° N, 81.7837° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 41 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 12 hours 11:15 min/km average. Generous. Walkable throughout for most of the field. About average for a 50 mi. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~31 Small. Long stretches with nobody in sight.

DUV results for the 2025 edition (40mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 24°C

Night low 12°C

Rainfall Showers likely

Daylight 12 h 51 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 843 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 64 km of trail with 2,600 m of ascent.

Trail Running Shoes41 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition64 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles2,600 m of ascent to walk up.
HeadlampsA 12 h limit puts you out there after dark.

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Adidas