As a supporter of the mountain sports world, Duhamel sought to share his passion with others by publishing numerous articles for the CAF, a Guide du Haut-Dauphiné in 1887 (in collaboration with W. A. B. Coolidge and Félix Perrin) which included a topography in color of the Mont Pelvoux massif, and a tribute to the Alpine troops, Au Pays des Alpins, in 1899.