Available distances
About
Herron Half takes place on July 10, 2027, in Kalispell, Montana. Three distances are announced: 21 km (13 mi), 10 km (6.2 mi) and 5 km (3.1 mi), on high ground where forest and mountain meet, in the north-west of the state. Start times and elevation gain are not listed in our records.
Mountain half marathons run long in time even when the distance is honest: plan on carrying water and something to eat, which a road half never requires. July in the Flathead Valley is warm by mid-morning but rarely humid, so the first hour is usually the fastest part of the day — start early, start easy, and keep enough for the climbs in the second half.
Highlights
- Forest
- Mountain
- High altitude
- Off-road
- Kids' races
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Races nearby
Other upcoming races around Kalispell.
Foy’s to Blacktail Marathon
Jul 11, 2027 · Kalispell, MT · 0 mi away
26.1 mi
Flathead Lake Run
Jul 25, 2027 · Lakeside, MT · 13 mi away
6.2 mi · 3.1 mi · 1 mi
Whitefish Trail Blazer
Oct 3, 2026 · Whitefish, MT · 15 mi away
2 mi · 3.4 mi · 6.8 mi · 13.1 mi
5k Fun Run x Blackstar Brew Pub
Nov 14, 2026 · Whitefish, MT · 15 mi away
3.1 mi
Sorry ‘Bout That Half Marathon
Jan 16, 2027 · Polson, MT · 35 mi away
13.1 mi
Le Grizz Ultramarathon
Oct 10, 2026 · Polebridge, MT · 39 mi away
50 mi · 9.3 mi · 3.1 mi