Lindsay lookout, British Columbia Forest Service, 1938, Colville National Forest

              The following azimuths were  observed  with  a
ferred to true north.   They are marked in red on
and should be used for orienting the fire-finder o
theodolite,  re-
the photograph
i the Look-out.
.      Reference Object.
Astronomic Azimuth.
Vertical Angle.
.2
3     F   . .,e      :
-t-t°^r
13PTC.V
P   AA-J    Lookou-V
+s°
1
AZIMUTH CORRECTIONS
Azimuths read from the grids on these photographs, while
enough for ordinary purposes, are subject to small errors which
the different views. For precise values, the following corrections
applied:—
PHOTO No.
DIRECTION.
AVERAGE CC
r.,-,Ir
[                          ^0_H
N
+ l5    m.
HE
-  s
f              ?>o-' +
F
- -
30-15
SE
[i                30-2
5i
1                 ^0-4-
sw
+. n
f           ?>o-n
w
:          3o- s
NW