114 A MANUAL FOR NORTHERN WOODSMEN 



on all operations, are not shown and cannot be shown with 

 that method of representation. 



The cost of such a map is very slight over and above the 

 cost of the survey work in sectioning. That in the region 

 named commonly costs from $600 to $800 per township. 

 If a region is divided into sections or quarter-sections, a 



good cruiser can produce a map like this as fast as he can 

 travel over the country. 



Contour Maps. The actual shape of a country is best 

 represented by contour lines. A contour line is a line of 

 equal elevation, the line a man would follow if he traveled 

 round a country keeping at a constant height, or what 

 would be the shore line could a country be submerged to 

 a given level. The base level of a map representing a 

 country near the seashore would naturally be sea level. 

 The first contour on the map might follow the line of 100 



