MAPS AND SURVEY – 1913
BY ARTHUR R. HINKS, M.A., F.R.S.

CHAPTER III
route traversing
The Explorer’s Route Map

The first care of a traveler who passes through an unknown, or partially explored country, is to make a record of where he has been, and of the main features of the country along the route by which he has traveled. Often singlehanded, encumbered by transport, compelled to keep to the track, and unable to leave his party, he cannot hope to make anything in the nature of a map, in the ordinary sense of the term. But for his own guidance, to avoid getting lost, he is compelled to determine his position day by day in much the same way that the position of a ship is determined at sea, by observation of the Sun and the stars, so that he is able to say roughly in what latitude, and perhaps in what longitude his halting places were. Moreover, as he goes along he is able to make such observations of the shape and course of his path as to enable another man coming after him not only to arrive more or less at the same place but to follow the same route. And finally, he can keep a sort of running record of the things that lie immediately to the side of his path. All this is done by the construction of a “route traverse” or “route map.”