218 PRIMARY TRI ANGULATION AND PRIMARY TRAVERSE. 
[Latitude 44° 48' 05.08". Longitude 103° 24' 29.40".] 
To station- 
Azimuth. 
Back azimuth. 
Log. distance. 
172 25 01 
268 08 48 
88 08 16 
285 31 37 
317 46 50 
353 08 23 
364 34 43 
352 14 48 
o / // 
352 23 21 
88 16 50 
268 00 01 
105 36 49 
137 55 20 
173 09 30 
184 34 04 
172 15 35 
Meters. 
4. 37048 
Owl 
4. 17739 
4. 18881 
4. 00459 
Fourmile 
4. 37637 
Wilson . 
4. 24295 
4. 18006 
Hough - - - 
4. 03386 
FOURMILE, BUTTE COUNTY. 
In section 24, T. 8 N., R. 7 E., on summit of the divide between 
Fourmile Creek and Bellefourehe River; same ridge dividing Four- 
mile Creek and Willow Creek a little farther north. Station is 600 
yards southeast, along summit from point where old Bismarck trail 
reaches top of divide. 
Signal: A lumber tripod, 12 feet high, with targets. 
Station mark: An iron bench-mark post, marked U A" and set 3 feet 
in the ground. 
[Latitude 44° 38' 33.72". Longitude 103° 12' 24.04".] 
To station— 
Azimuth . 
Hack azimuth. 
Log. distance. 
o , n 
o / // 
Meters. 
Dry (2) 
137 55 20 
317 46 50 
4. 37637 
Owl 
177 08 35 
91 09 24 
357 08 06 
271 02 01 
4. 25837 
Wilson 
4. 14295 
Simmons 
63 11 59 
243 07 45 
3. 95116 
B. M 
106 34 04 
286 33 02 
3. 30550 
MILLER, BUTTE COUNTY. 
In section 6, T. 8 N., R. 5 E., a very prominent low butte, about 2 
miles north of Bellefourche River and on the divide between Owl 
Creek and that river, about 3 miles north and 5 miles east of Snoma 
post-office and 1^ miles northeast of Sorenson's ranch. 
Signal: A lumber tripod, 12 feet high, with targets. 
Station mark: An iron bench-mark post, marked "A" and set 3 feet 
in the ground. 
