MappingSupport - Joseph Elfelt

I am a software developer in the field of maps that display GIS data.  This channel has a series of videos showing how to use GISsurfer (Online maps - https://gissurfer.com) which is a general purpose web map I developed that can display GIS data.  
I highly recommend you watch the GISsurfer videos in order.  Videos yet to added will show how to use GeoJPG (Offline maps - https://geojpg.com) and FindMeSAR (GPS coordinates - https://findmesar.com).