The streams shown in dotted line were dammed at A and B; as the 
water rose it formed two other outlets, C and D. At these points 
additional dams were put. Later, to reinforce the principal structure, 
supporting or subsidiary dams, H, F, G and H, were built. On the 
island, I, formed by the rising water was the first lodge. On the 
west side are the roads, J, to the birch and maple trees. To the north- 
east is a canal, K, built in order that the beavers might have access 
to the grove of aspens, which was situated on rising ground and 
necessitated making the canal with three dams to hold the water at 
the different levels. Toward the end of the east wing of the canal is 
a straight line, L, indicating the small aqueduct or ditch cut by the 
beavers in order that water might be diverted from the streamlet to 
ensure an ample supply for the canal. Other small canals, M, are for 
the purpose of making short cuts when transporting food supplies. 
The upper pond, N, was made by the second pair of beavers, who had 
been driven from their own home by fire. The dam forming this pond 
is O, with subsidiaries P,Q. The lodge, R, on a point of land which 
has been formed into an island by cutting a ditch. The second lodge, 
8, was built by one of the young from the first lodge. 
R.B. 
