Onaping Map-Area (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from Onaping Map-Area

There were no serviceable maps of the area when the work was begun, so geological work and the surveys of lakes and streams necessary to make geographical base map had to be carried on together. For the latter purpose all navigable canoe routes were surveyed with Rochon micrometer and prismatic compass. Fortunately the country was at that time being sub divided into townships by the Ontario government, and these surveys kept pace with our work. The freshly run township boundaries made excellent controls I r the less precise micro meter surveys. And facilitated traverses inland from the water ways.

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