GPS web application for the sport of orienteering. The course setter sets the GPS coordinates for the start, controls and finish. A runner with GPS runs the course and afterwards checks with FROG if she or he has been in the right positions.
OMGM (O-Maps on Google Maps) allows you to upload orienteering maps and use them in your Google Map application. OMGM provides an "orienteering map tile layer" for all uploaded maps.