You arrive at a new resort, it’s dumping snow, visibility is… questionable, and everyone in your group swears they “know the way.” OpenSlope is the friend who actually does. Open it up and you get ski maps that feel alive—satellite detail with topo lines so you can read the mountain. You can check elevation profiles and slope insights. Once the map is loaded, it’s yours. OpenSlope keeps going offline. Share a simple code, and your friends pop onto the map as colorful markers.