Trail du Jura Bernois 66.5 km trail running route — Switzerland · Canton of Bern (Jura)

Switzerland · Canton of Bern (Jura)

Trail du Jura Bernois

Distance

66.5 km

Date

September 25, 2026

Entry fee

77 EUR

€ / km

€1.26

Jura ridgeline running: rolling climbs, forest singletrack, and pure Swiss countryside.

Elevation and Terrain

Total Meters

3131m

D+/KM

47.08m/km

For context, the Tor des Géants 330 loop has 73 D+/km.

Avg Uphill Gradient

10.8%

Avg Downhill Gradient

-10.6%

Uphill gradient distribution

2–5%
7.3 km
5–10%
8.6 km
10–15%
4.7 km
15–20%
4.3 km
20%+
3.3 km

Route Profile

Analysed 2026-05-02

Terrain breakdown

43%Uphill14%Flat43%Downhill

Terrain

Pre-AlpineForest

Climbs

Trail du Jura Bernois climbs and descents profile

Top climbs

1

5.8 km · 658 m gain

starts km 36 · avg 11.3% · max 30.4%

2

7.2 km · 611 m gain

starts km 6 · avg 8.5% · max 52.4%

3

6.4 km · 514 m gain

starts km 50 · avg 8.1% · max 36.1%

Top descents

1

8.4 km · 862 m drop

starts km 41 · avg -10.3% · max -68.2%

2

4.1 km · 439 m drop

starts km 2 · avg -10.8% · max -30.9%

3

4.0 km · 425 m drop

starts km 21 · avg -11.0% · max -34.1%

Race files

Logistics

Nearest airport

Basel (BSL) / Geneva (GVA) / Bern (BRN)

Notes

Start: ~1–2.5 hrs to Tramelan (Bernese Jura) by train+taxi / Public transport: good to Biel/Bienne then local / Accommodation: limited in Tramelan; better in Biel/La Chaux-de-Fonds

Last checked: February 16, 2026Official Website →