The Col Emile Rey (4030 m), located on the Italian side of Mont Blanc (between Mont Brouillard and Picco Luigi Amedeo), is named in Rey's honour. Described as a superb col in wild surroundings, it can be subject to bad stonefall on both sides. It is not used as a route between adjacent glaciers, but can be used by mountaineers to access the Brouillard Ridge. The first traverse of the Col Émile Rey was made in 1899 by G.B. and G.F. Gugliermina with N. Shiavi, exactly four years to the day after Rey's death.: