Abstract: 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 an underlying geographical region. A representation of the course of travel as viewed from perspective may then be selectively produced utilizing the correlated data. Linear segments of the course of travel are shown in this view situated at a relative angle with respect to adjacent linear segments, the angle representative of a direction and slope thereof. As a result, changes in elevation of the course of travel are continuously shown on the perspective two-dimensional representation to facilitate visual appreciation of the difficulty thereof by the traveller.

Abstract: Adjustable cross pieces or rungs for aiding in forming a ladder using a tree cut at predetermined lengths and trimmed of branches. The cross members include two end members and a centrally located channel member which receives an elongated main body portion of the end members and which can be stabilized at the top and bottom rungs for securing the trees together and forming foot rests or rungs for the ladder.