Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 6:30 finish (an estimate) · starting 7:00 AM Apr 25. Dark means the sun below civil twilight.
Climbs
4 climbs · 1,204 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 4,734ft | +60% |
| USGS lidar, 1 m | 2,954ft | reference |
They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 30, 2026. The planner still uses the course file.
Conditions typical race-day weather for Apr 25 at the start
Typical = the median of 2016–2025 for Apr 25 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 1 year of this race
Past editions
On race day it reached 64°F at the start, with a low of 45°.
| Year | Start °F | Rain | Wind |
|---|---|---|---|
| 2026 Apr 25 | 64°/45° | dry | 14mph |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line.
Reviews what runners who have been there say
No reviews yet — be the first to run it and tell other runners what to expect.
About this course
Hells Dells — 2026 covers 30.7 mi (49.4 km) with 4,734 ft of elevation gain. That is about 154 ft per mile of climbing, and 4,744 ft of descent. The course tops out at 5,568 ft and bottoms out at 5,016 ft. The profile has 4 sustained climbs; the biggest is the climb from mi 11.4, +528 ft over 3.0 mi at 3.3% on average (steepest stretch 13%). Race day is April 25, 2026, starting at 7:00 AM; the sun rises at 5:47 AM and sets at 7:10 PM. Typical race-day weather at the start: a high of 74°F and a low of 46°F, with a 6% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
Load the course in the TrailGoat Run Planner for grade-adjusted pacing, climb-by-climb splits, hourly weather and a full hydration & fueling plan — free, no account needed.
Race director? — one line of HTML, always up to date.
Course history
- Oct 29, 2026Added to the catalog
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