Calcul Mental

"Calcul Mental" is a challenging bouldering route located in the Apremont Est area. Graded as "FB6b," this hard problem features a vertical wall for climbers to navigate. Serving as an alternative to the 12th route of the Red circuit, "Calcul Mental" is one of three routes on the boulder known as Sable. The topo image provides climbers with a visual guide indicating the general climbing direction for this demanding route.