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Superior Fall Trail Race Castle Danger, Minnesota, United States

Name: Superior Fall Trail Race
Start: 2026-09-11
End: 2026-09-12

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Superior Fall Trail Race

Course maps

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26.2 Miles
50 Miles
100 Miles

Foot race | 12 Sep 2026

51.5 mi

Distance

Elevation gain

1,788 ft

Elevation high

1,332 ft

Elevation avg

Trail/Dirt

Elevation loss

732 ft

Elevation low

14%

Climb factor

What is climb factor?

The climb factor for a course is the percentage of your energy used in hill-climbing compared to the energy expended running the flats.

This course has a climb factor of 14% over 51.5 mi, which means that the energy expenditure for the run is equivalent to running a flat 58.9 mi.

Climb factor is provided courtesy of Ben Crowell, who both authored climb factor's scientific paper and wrote the open source software for it. You can read more about it here .

Course last updated 21 Aug 2026

All values approximate

Distance & elevation data

The distance or elevation data not precisely what you expect for this route?

Data from a GPS device can be rough, especially in areas where the terrain (trees, canyons) interfere with GPS signals. And routes drawn on our maps are reliant on people marking trails from satellite images -- the details of which can be hidden by trees.

Elevation can be tricky too. Elevation data is stored on spaced topographical lines, and determining the elevation of a point requires computers to estimate based on how close the point is to the topographical line.

We mitigate this by calculating distance in 3-D (think Pythagorean theorem) and using mathematical techiniques to smooth the elevation data. We come close, but no one can be perfect with imperfect data, even in 2026.

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Superior Fall Trail Race - 50 Miles course map

Stats summary

Race distance	Distance	Ele gain	Ele loss	Ele avg	Paved	Gravel	Dirt	Narrow
26.2 Miles	26.1 mi	4,167 ft	4,265 ft	1,276 ft	2%	96%	2%	95%
50 Miles	51.5 mi	7,697 ft	7,831 ft	1,332 ft	1%	96%	2%	93%
100 Miles	100.2 mi	12,697 ft	12,238 ft	1,207 ft	5%	94%	1%	98%