A Layer in TrueNorth is similar to a Layer in any GIS – it is a collection of geospatial data that is related in some way. For example
- Features Layer contains GPS tracks, waypoints, routes and other features
- Tiles layer contains map tiles from an online or offline source.
- Tracking layer draws tracks for remote devices that report their location
- Annotations layer is used to measure distance, bearing, area, and to embed notes and photos into the map.