178 PRIMARY TRI ANGULATION AND PRIMARY TRAVERSE. 
MONTANA. 
TRIANGULATION STATIONS. 
FERGUS COUNTY. 
MOCCASIN MOUNTAIN. MAIDEN, AND KENDALL QUADRANGLES. 
During the season of 1905 H. L. Baldwin, jr., controlled an area of 
800 square miles, based on the positions of Judith and Big Snowy, as 
published on page 305, Bulletin No. 122. Azimuth observations werdj 
made at stations Skaggs and Fence Corner, the weighted mean of 
which was adopted in computing the positions of 10 occupied and 12 
unoccupied stations. Positions are given on the Bozeman astronomic 
datum of the Wheeler Survey of 1873. 
BIG SNOWY. FERGUS COUNTY. 
On highest summit of Big Snowy Mountains, south and east of 
Half Moon Bass, elevation 8,600 feet. A monument was found witq 
5-foot base and 7 feet high. It was enlarged to oval shape, 9 feet init| 
large rdiameter and 5 feet in smaller diameter, so as to be seen from 
points to northward. 
Station mark: Rock monument. 
Reference mark: A bronze tablet cemented in decomposed lime- 
stone rock, true azimuth 155° 35', distant 12.1 feet. 
[ Latitude 46° 45' 12.30". Longitude 109° 18' 48.80".] 
To station- 
Crazy 
Neiha rl 
Judith 
Soul li Moccasin 
Judith a 187 
Fox Pass a 198 
Azimuth. 
Back azimuth. 
Log. 
distance. 1 
O / II 
/ // 
Meters. 
42 37 3(3.00 
221 55 45.00 
5.041! 500 i 
104 13 56.00 
283 17 23.00 
5.0661220 j 
187 42 20.00 
7 46 24.00 
4.7178170 ! 
a 160 27 40.19 
340 17 56.98 
4.7008583 j 
a 187 38 46.00 
7 42 47.44 
4.7178170 | 
a 198 38 56.87 
18 49 47.22 
4.7660659 i 
a ( ibserved azimuth, 1905. 
DOGMELLE, FERGUS COUNTY 
About 2 miles east of the Claggett road, on a prairie mesa lying 
between Dog and Armelle creeks, 2 miles southeast of a large ranch 
house supposed to belong to Fergus. 
Station mark: An iron bench-mark post set 3 feet in the ground. 
Reference mark: An "Ayer's Sarsaparilla" bottle buried 6 inches 
below surface of ground on line to North Moccasin and covered with 
a small pile of rocks, true azimuth from station 75° 07', distant, 5.1 
feet. 
