Grotte des Piaroux (Piaroux Grotto) is located near Col des Limouches (Limouches road pass) on Vercors Regional Natural Park in Drôme department of France. The opening has an estimated height of 1.7 meters. The grotto is located on IGN topographic map by a cave symbol (issue 3136 Bourg-de-Péage 2016 (pleat H3).
