In 2014 I thru-hiked the Appalachian Trail northbound from Georgia to Maine. As I hiked I recorded waypoints to a map to track my progress.
About this map
The map on this page is rendered by Mapbox from this repository. The GeoJSON is generated using Check In for Android and a custom server. New data is pushed to the Git repo on an hourly basis by a cron job, though in reality there will only be new data about once per day (or whenever I reach a town with Wifi to upload it). More information about my 2014 attempt to thru-hike the Appalachian Trail can be found in these posts.