The Altitude system reduces barriers to safety and hike planning with a website and GPS tracker. The app allows you to join a community of outdoor enthusiasts, get up-to-date safety and trail information, and log your hikes for rewards. The GPS tracker embedded in a carabiner allows you to create geofences for specific hikes and alerts you when you leave the customized area. You can share the GPS location with your community in cases of emergency. Altitude works even when cell phones fail.