34 SURVEY OF IDAHO-MONTANA BOUNDARY LINE. [bull. 170. 
[Latitude, 48° 11' 19'.36. Longitude, 116° 04' 58". 02.] 
To station— 
Azimuth. 
Back azimuth. 
Log. distance. 
Chilco 
45 30 01.97 
76 42 07.01 
129 21 22.70 
350 15 33.38 
o / // 
225 10 00.98 
256 22 33.71 
309 13 54.54 
170 18 05. 87 
Meters. 
4. 6724527 
4. 5246835 
4. 2047087 
4. 4001417 
Blacktail 
Round Top . 
Divide . 
ROUND TOP, KOOTENAI COUNTY, IDAHO. 
Location of station: Northeast of Hope, on the Sherry trail, near 
Hogeye camp, on the southern end of the summit, which extends 100 
yards north and south. 
Station mark : A copper bolt sunk in rock, above which is a rock 
cairn 5 feet in diameter and 5 feet in height. 
[Latitude, 48° 16' 47".86. Longitude, 116° 14' 58".88.] 
To station— 
Azimuth. 
Back azimuth. 
Log. distance. 
o / U 
o / // 
Meters. 
Chilco 
26 00 41.75 
205 48 07.02 
4.6816159 
Blacktail 
48 22 33. 96 
228 10 27.76 
4. 4305996 
Scotchman. 
309 13 54.54 
120 21 22. 70 
4. 2047087 
Divide _ . 
334 24 02. 60 
154 34 02. 58 
4. 5855553 
DIVIDE (1). 
Location of station : On a knoll on divide of the Bitterroot Mountains 
on the boundary line between Idaho and Montana. It is not the 
highest point, but it is almost cleared of timber. Station is best 
reached from Heron, Montana, by the Elk Creek trail. 
Station mark: A copper bolt sunk in solid rock, above which is a 
rock cairn 3 feet in height and 3 feet in diameter. 
[Latitude, 47° 57' 57".51. Longitude, 116° 01' 33 ".08.] 
To station— 
Azimuth. 
Back azimuth. 
Log. distance. 
Chilco. .._ 
/ // 
77 47 46.64 
154 34 02.58 
170 18 05.87 
257 25 15.62 
334 24 02,60 
350 15 33.38 
Meters. 
4.5875062 
4.5855553 
4.4001417 
Round Top 
Scotchman -. 
MOOYIE TRAIL MONUMENT. 
On or near the boundary line between Kootenai County, Idaho, and 
British Columbia, about 32 miles northward from Bonners Ferry. 
