Moncodeno (Moncoeuden in Lombard) is the northern mountain slope of the Grigna, part of the Bergamasque Alps in the province of Lecco, Lombardy, northern Italy. Mostly located in the administrative territory of the municipality of Esino Lario, a small part is situated in Cortenova. The geography is mainly karst and there are hundreds of caves.
The most notable of these are the Alto Releccio, with a depth of 1,190 metres (3,900 ft), making it one of the deepest caves in Italy, as well as the "Icebox of Moncodeno", a cave, visited by Leonardo da Vinci that stays icy even in summer.
In 1881, the 14th Congress of Italian mountaineers convened in Milan. The delegates of the Italian Alpine Club (CAI) were invited to attend a ceremony in Lombardy in the area known to the scientific world for the studies of Milan's CAI section president, the abbot and Lecco geologist, Antonio Stoppani, who founded the Capanna Moncodeno (hut). It is the first refuge built for Grigna researchers. The hut was destroyed by an avalanche in 1897. The Monza CAI rebuilt it closeby in 1906 and named it Capanna Monza. This was set on fire and destroyed again by the Fascists in 1944. A new building was rebuilt and opened in 1951, named Rifugio Arnaldo Bogani.
Coordinates: 45°56′39″N 9°23′15″E / 45.9443°N 9.3875°E