The USGS publishes free topographic maps that show trails, rivers, and campsites in great detail for hikers, cyclists, and ...

Abstract: Contour mapping is a crucial part of many wireless sensor network applications. Many efforts have been made to avoid collecting data from all the sensors in the network and producing maps at ...

A single html file to align a .gpx or .tcx track to a (scanned) map (.png). The track can have or not have any controls (laps from a Garmin GPS watch). You just click on the track or the controls and ...