1925 DEPARTMENT OF LANDS AND FORESTS 101 



(1). The Amyot patrol covered as far west as Longlac between Lake Superior 

 and the C.N.R., and extended south and east over the A.C.R. belt, and the 

 northern part of the Mississagi Reserve. This patrol worked in connection with 

 the northern division of the Sault Ste. Marie Inspectorate, whose headquarters 

 were at Oba. The area covered by this patrol was approximately ten million 

 acres. 



(2). The Como Lake patrol was supplied by one machine and covered the 

 area east of the A.C.R. belt, including the central and southern Mississagi, and 

 as far north as the southern boundary of the clay belt. This patrol worked partly 

 in the Sault Ste. Marie Inspectorate and partly in the Sudbury Inspectorate. 

 The area covered by this patrol was approximately 7.6 million acres. 



(3). The Sudbury patrol operated north up the main line of the C.P.R. and 

 C.N.R. to join the Como Lake patrol and west along the Soo branch of the 

 C.P.R. According to the condition of the machines, this patrol was supplied by 

 one of two machines, and covered some of the most hazardous country in the 

 patrol district. The area of the patrol was approximately ten million acres. 



(4). The Timagami patrol covered theTimagami Reserve and extended as 

 far north as the clay belt, north of Night Hawk Lake, and as far west as the 

 C.N.R. belt covered by the Sudbury patrol. The area covered by this piatrol 

 was over seven million acres. 



Survey: 



(a) Sketching — Classification of timber by aerial observation was carried 

 on in the country west of Lake Nipigon, where approximately 2,634,000 acres 

 or forty-six per cent, of the allotted season's work were covered. 



About 200 flying hours were used in this operation and bases flown from 

 include Savanne, Allanwater, Nipigon House, Orient Bay and Port Arthur, 



The season's sketching programme was not completed for a variety of 

 reasons, amongst which might be mentioned the unusually rainy season, the 

 necessity of training new men to the work and the attempted alternation of 

 machines between aerial survey and fire detection. This scheme of transferring 

 machines from one service to another as required and which superficially has 

 many attractive features, was thoroughly tried during the past season. 



As was suspected from some slight previous experience in 1923, it was 

 found to be unsatisfactory, and also very wasteful of flying due to the loss in 

 transference. 



The Nipigon survey also showed that the preparation of a complete type 

 map in advance of the commencement of ground estimation, as was the case with 

 the eastern half of the watershed, makes a much more effective and cheaper 

 survey possible. 



Some of the factors contributing to these results being (1) the possibility, 

 where a map is in existence, of picking good routes of travel and concentrating 

 work on the more valuable timbered areas, (2) the possibility of laying out an 

 intelligent time schedule of work and of properly apportioning supplies, etc. 



There are also less briefly explainable, but none the less real savings, in the 

 aerial end of the operation. 



On the basis of this past season's work therefore, and also referring to all 

 our previous experience, it would seem advisable to confine estimation to country 

 already mapped, and further, to plan survey work so that aerial type mapping 

 may continuously keep a season in advance of ground estimation. 



