Navtool 5: Contour gauge for slopes at 20, 30, 40, 50 & 60 degrees which are the avalanche risk areas. These are in 3 scales (1:25,000, 1:40,000 and 1:50,000 and cover contour intervals of 10m (1:25,000 & 1:50,000) and 15m (1:25000 & 1:40,000). It also has some things to consider when dealing with an incident.