Read the terrain
before you set off
Three terrain analyses from elevation data — slope, aspect and avalanche risk — as a clear colour overlay right on your map. Pick one overlay, click again to turn it off.
Terrain analysis from elevation data
One click from map to terrain insight
The overlays are computed live from a digital elevation model (DEM). No download, no pre-processing — zoom to your area and the analysis appears on top.
The three overlays
Three ways to read elevation
Each overlay answers a different question about the terrain. Switch with a single click.
Slope angle
Live demo
Try it yourself on the map
Switch between steepness, aspect and avalanche terrain — right in your browser, no account needed.
How it works
From elevation model to readable map
Turn on the layer
Open the layer menu on the map and choose "Mountain terrain". The overlay appears over your current view.
Pick your analysis
Switch between Slope, Aspect and Avalanche terrain. Click the same button again to turn the overlay off.
Plan with insight
Route along passable terrain, avoid the avalanche core zone and use aspect to time sun and snow.
What for
Built for people who go into the terrain
Mountain training
Plan routes above the snow line with insight into steepness and avalanche risk — like the Royal Marines in Norway.
Expeditions & mountaineering
Assess climbing zones, pick the safest line and match your timing to slope aspect.
Alpine operations
Terrain appreciation for movement, cover and risk reduction in snow-covered high mountains.
Search & Rescue
Quickly gauge how passable a search area is and work out safe approach routes.
Take the terrain into the map
Mountain terrain is built into MilMap. Start free and turn on the overlays today.