The longest circuit of the Trail des 600 Boitheux is the 66 km (66.3 km exactly) and an altitude difference of 2330 m. It allows the finishers to earn 3 ITRA points in preparation for one of the UTMB’s races.
Excellent circuit, really happy that I’ve done this 55 km in 2018. Gauthier.
Four quality food supplies in liquid and solid are offered on the circuit (at the km 15, 26, 43, and 54) and another at the finish line. Nevertheless, bring your own food supplies.