24 



METHO'DS OF COMMUNICATION FOR FOREST PROTECTION 



been provided and future extensions need be made only for the purpose of connecting 

 points of special utility. As a rule, a system which joins all the district ranger head- 

 quarters and main lookout stations with tihe supervisor's office will, in addition, provide 

 connection with a large proportion of all other points on the tract that it is desirable 

 to reach. There may, however, be isolated camps or settlements, secondary lookout 

 stations, or other strategic points that require short branches from the main circuits. 

 It is particularly important, however, to note that the central point in any forest- 

 protection telephone system is the supervisor's headquarters and, therefore, this must 

 be definitely located at the start in the most suitable place, and the system planned 

 accordingly. 



Before a system can be intelligently planned the following data must be avail- 

 able in every case: 



(1) Boundaries of tract. 



(2) Boundaries of ranger districts. 



(3) Location of supervisor's headquarters. 



(4) Location of district ranger headquarters. 



(5) Location of primary road and trail system. 



(6) Location of primary lookout stations. 



(7) Location of existing telephone lines on or near the tract. 



As many other strategic points as possible should also be determined. 



Section 26 External versus Internal Systems 



It will be found in planning a system of telephone lines for large areas of timber- 

 land that two general cases may be recognized, and the arrangement of circuits must 

 be governed by these general conditions 1 . 



XTERNAL SYSTEM 



ipervisor 



Fig. 3. External telephone system on a forest reserve 



1 EXTERNAL SYSTEMS 



It not infrequently happens that the forest to be protected is wholly or in large 

 part surrounded by settled lands. This is somewhat more common in the United 

 States than in Canada, but throughout the Prairie Provinces and in parts of British 

 Columbia as well as in some parts of the eastern provinces this condition exists. If 



