Elevation features are described on maps by use of contour lines. A contour line on a map is the line you would trace out on the terrain if you were to walk along a path of constant elevation. [...]
Found some nice new places to rappel. Found a sweet 300′ rappel we will need to go back and complete.
Despite all your preparations, planning your route, knowing how to use a map and compass it still happened – you’re lost! So, now what should you do? Following some simple guidelines will [...]