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TrailUnited StatesOregon

Thunder River 2026

31.10.2026Cascade Locks (United States)
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1’3724’501 m D+ ft D+

50 km31.1 mi50 kmlongest of 2 courses

At a glance

Thunder River 2026 took place on Saturday 31 October 2026 in Cascade Locks (Oregon, United States). Two distances to choose from: 25 and 50 km.

Longest course: 50 km with 1’372 m D+ (27 m per km: hilly terrain). It has 4 aid stations. Terrain: 76% trail, 5% forest track and 19% road. Terrain data: © OpenStreetMap contributors.

The 2027 edition takes place on Saturday 6 November 2027. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

Fall splendor through the Columbia River Gorge.
From the organiser

2 courses

  1. 25km15.5mi

    701 m D+2’300 ft D+

    1’005 m D-3’297 ft D-

    avg 3%

    25 km

    31.10. · 2 aid stations

    No index
    GPX

  2. 50km31.1mi

    1’372 m D+4’501 ft D+

    1’952 m D-6’404 ft D-

    avg 3%

    50 km

    31.10. · 4 aid stations

    No index
    GPX

Course analysis

50 km31.1 mi1’372 m D+4’501 ft D+

64effort kmⓘ50 km on the map · feels like 64 km31.1 mi on the map · feels like 64 km
D+
1’372 m4’501 ft
D−
1’952 m6’404 ft
Max alt.
297 m974 ft
Steepest
16%

Segments

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Elevation profile: 50 km

23 m – 297 m75 ft – 974 ft

Terrain

Aid station by aid station

Terrain, climb and cutoff between each aid station.

  1. Start → Aid Stn 1 - Peregrination (water only) km 0 → 8.5km 0 → 5.3

    8.5 km5.3 mi · +360 m1’181 ft · −304 m997 ft

  2. Aid Stn 1 - Peregrination (water only) → Aid Stn 2 - Cascade Locks km 8.5 → 18.3km 5.3 → 11.4

    9.9 km6.1 mi · +505 m1’657 ft · −534 m1’752 ft

  3. Aid Stn 2 - Cascade Locks → Aid Stn 3/4 - Wahclella km 18.3 → 27.2km 11.4 → 16.9

    8.9 km5.5 mi · +335 m1’099 ft · −386 m1’266 ft

  4. Aid Stn 3/4 - Wahclella → Aid Stn 3/4 - Wahclella km 27.2 → 38.5km 16.9 → 23.9

    11.3 km7 mi · +395 m1’296 ft · −395 m1’296 ft

  5. Aid Stn 3/4 - Wahclella → Finish km 38.5 → 50km 23.9 → 31.1

    11.5 km7.1 mi · +341 m1’119 ft · −336 m1’102 ft

Elevation figures are measured by Kliva on the course trace. Cutoffs are the organiser's.

Race plan

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Pacing, aid stations and fueling timed to your effort on Thunder River, in one roadbook.

Includes this race's official aid stations and cutoff times.

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