Race website http://www.stierenberglauf.ch/
The avid mountain runners who designed this course describe it as “hard but still beautiful.” Centered in Schwarzsee, south of Bern in Switzerland, the route passes along the Schwarzsee lake high in the Breccaschlund, and via Bull Mountain drops to the bottom of Euschels. You’ll enjoy panoramic views of the Range on the 10 km route. Descent is via the Riggisalp train. This race is held on Swiss National Day, a day of BBQ’s and fireworks!