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Siskiyou Out Back Jackson County, Oregon, United States

Name: Siskiyou Out Back
Start: 2027-07-10
End: 2027-07-10

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Siskiyou Out Back

Course maps

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HelloDrifter does not warrant the accuracy of this course data; it is provided for informational use only. Verify the course against the event organizer's published materials before relying on it for navigation or safety-critical activities.

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50K
50 Miler
100K

Foot race | 10 Jul 2027

49.2 mi

Distance

Elevation gain

7,490 ft

Elevation high

5,994 ft

Elevation avg

Trail/Dirt

Elevation loss

4,068 ft

Elevation low

20%

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 20% over 49.2 mi, which means that the energy expenditure for the run is equivalent to running a flat 59.2 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 16 Dec 2019

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.

This race distance has been flagged as having potential issues. Check the event's official website or race handbook for details.

This distance may not be available this year.

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Surface detail information for this course is unavailable.Learn more.

Surface detail information

HelloDrifter takes a few minutes to obtain surface detail information for every course created on the site. When present, clicking the "information" icon on the right of the map will cause sections of the course to display whether they are path, road, gravel, or dirt.

Please note that this feature is not available everywhere in the world (yet). We currenly support North America, Australia, and Europe. Even then, surface details aren't available unless the course matches data that is available in OpenStreetMap. (Typically, this means that we can't get surface details for very remote courses or courses with imprecise GPX data.)

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