This example demonstrates a minimal interactive map centered on coordinates [49, 50, 3], rendered with the Leaflet JavaScript library. It displays a Stamen Terrain tile layer with OpenStreetMap attribution, filling the entire viewport via a styled `#mapdiv` element. The code sets up the map instance using `L.map().setView()` and adds the tile layer with `L.tileLayer().addTo()`. The map supports standard pan and zoom interactions, relying on Leaflet’s core API rather than additional plugins or data sources.