Trail So Bugey

About the Event

The 9th Edition of the Trail So Bugey is scheduled for Saturday, May 9, 2026, in the picturesque village of Lhuis, France. Known for its emphasis on friendliness and scenic landscapes, this trail running event explores the rugged terrain of the Bugey region. The competition features a unique structural format where three base distances can be combined into a massive ultra-endurance challenge. The event caters to a wide spectrum of athletes, from elite mountain runners to young children, maintaining a community-focused atmosphere that has become a hallmark of the race over nearly a decade.

Race Category	Distance	Key Terrain	Difficulty
L’Intégrale So Bugey	72 km	Combined 11, 22, & 39km loops	Ultra / Expert
Historical Loops	11km / 22km / 39km	Mountain trails & forest paths	Intermediate to Advanced
P'tits Trails	1km / 3km / 5km	Village-adjacent easy trails	Youth / Beginners

Lhuis is a small rural commune located in the Ain department of eastern France, with a population of approximately 900 residents. The demographic is predominantly French (approx. 97%), reflecting the quiet, traditional nature of the Auvergne-Rhône-Alpes countryside. The median household income in the region is roughly €23,500 per year. Geographically, Lhuis sits at the southern tip of the Jura Mountains, overlooking the Rhône Valley. The race terrain is characterized by steep limestone ridges, dense oak and boxwood forests, and panoramic views of the French Alps. Runners face technical single-track descents and significant vertical gain, all within a temperate oceanic climate that often provides fresh, crisp conditions during early May.

Registration is managed through the official Trail So Bugey website, where participants can also find information on local accommodations and volunteer opportunities. The "Intégrale" challenge is the centerpiece of the event, requiring runners to complete all three historical loops consecutively. For safety and timing, live results and GPS tracking are typically provided during the race. For real-time updates and community engagement, runners are encouraged to follow the event's social media channels or contact the organization directly via their portal.

Races Offered

72km

May 09, 2026

straighten

Distance — 72K

terrain

Type — Running

timer

06:00

sell

€60.00

39km

May 09, 2026

straighten

Distance — 39K

terrain

Type — Running

timer

08:00

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€38.00

22km

May 09, 2026

straighten

Distance — 22K

terrain

Type — Running

timer

09:00

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€20.00

11km

May 09, 2026

straighten

Distance — 11K

terrain

Type — Running

timer

10:30

sell

€16.00

1km

May 09, 2026

straighten

Distance — 1K

terrain

Type — Running

timer

14:30

sell

€5.00

3km

May 09, 2026

straighten

Distance — 3K

terrain

Type — Running

timer

14:30

sell

€5.00

5km

May 09, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

14:30

sell

€5.00

Weather Overview

These values represent the 3-year monthly averages for May in Lhuis.

Temp (°C)

Feels Like (°C)

thermostat 9.6° / 19.3°

wb_sunny 8.6° / 18.1°

Wind (km/h)

Humidity (%)

air 5.1 /

water_drop 77.7%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 9.6° / 19.3°

wb_sunny 8.6° / 18.1°

air 5.1 km/h

water_drop 77.7%

About Lhuis

Learn more about the host city, Lhuis.

Lhuis is a commune in the Ain department in eastern France in the Bugey region at the southern end of the Jura mountains, between Lyon and Aix-les-Bains, about 60 km (37 mi) from each.