A method and system of producing a 3D perspective representation of a hiking trail or the like in two dimensions. Manually-obtained first data indicative of a heading and distance of each approximately linear segment of the course of travel are correlated with second data indicative of a topography of...http://www.google.co.uk/patents/US5857066?utm_source=gb-gplus-sharePatent US5857066 - Method and system for producing an improved hiking trail map
