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NATURE
· Fire Forests
FIRST PEOPLES
· First Nations Basketry from the Dry Forests
HISTORY
· Revealing the Cariboo-Chilcotin
This is a link to a map of the forests of British Columbia with optional close-ups of Northeastern British Columbia, Cariboo-Chilcotin and Central Coast.

FOCUS  Cariboo-Chilcotin -- Dry Forest

Revealing the Cariboo-Chilcotin
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This is a photograph of a surveyor's theodolite made in London by Troughton and Simms.
Surveyor's theodolite made in London by Troughton and Simms and brought to British Columbia in the 1850s. RBCM 968.21.5.
Triangulation surveys determine distances and were usually made from mountain peak to mountain peak. The Lands Department's Annual Report of 1925 describes a triangulation survey made in the Cariboo-Chilcotin in 1924 by John Davidson.

"During the season over 1,200 miles were traveled in moving the main camp by wagon and pack-train. Well-balanced quadrilaterals were obtained with triangles having sides from 30 to 65 miles in length.

It was found that a well-built cairn 10 to 12 feet high made the best target. On all the peaks there was found an abundant supply of loose rock sufficient also for shelter-walls, which were sometimes needed to prevent the transit from being blown over by the gales.

Flags, even when made of stout duck [a kind of heavy cloth], had a very short life owing to the persistent gales. They were effective only for about three weeks."

Surveyor's transit, made by C.L. Berger and Sons, Boston, similar to one used by W.S. Drewry in his Cariboo surveys. RBCM 989.39.1 a-f.
This is a photograph of a Surveyor's transit, made by C.L. Berger and Sons, Boston.
Survey camp; G.V. Copley and Yuen at lunch, Tatla Lake, 1913. BC Archives I-58197.
This is a black and white photograph of two men, G.V. Copley and Yuen at lunch at a survey camp.
Vernier compass made by Davis and Sons, London and Derby. Compasses are occasionally used in surveying, especially when speed is more important than accuracy. RBCM 971.61.1788.
This is a photograph of a Vernier compass made by Davis and Sons, London and Derby.
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