176 PRIMARY TRIANGULATION AND PRIMARY TRAVERSE. 
[Latitude 33° 29' 56.90". Longitude 111 38' 28.08".] 
To station- 
Azimuth. 
Back azimuth. 
Log. distance. 
Superstition 
O / II 
293 54 32. 08 
234 00 01.23 
O '/ II 
114 02 28.05 
55 10 38. 43 
Melt rs. 
4. 3874513 
Four Peaks 
4. 5520318 
CAIilFORlSTA. 
TRIANGULATION STATIONS. 
NAN DIEGO COUNTY. 
HOLTYILLE AM) IMPERIAL QUADRANGLES. 
In the spring of L904 Mr. C. F. Urquhart, topographer, in coopera- 
tion with the Reclamation Service, extended a belt of triangulation 
wot ward from the vicinity of Yuma, Ariz., through San Diego 
County, connecting with stations Tecate and Cuyamaca, of the United 
States Coast and Geodetic Survey. In the prosecution of this work 
Mr. Urquhart occupied 25 stations for the control of an area of 2,500 
square miles. 
The positions given herewith arc based upon Cuyamaca-Tecate <>n 
the United States standard datum. 
AMERICAN, s.\x DIEGO COUNTY. 
On the highest point of a range of mountains lying east of the 
American gold mine and about 3 miles a little south of east from the 
mine. Take road from Yuma to the American gold mine. Horses 
can be taken within a mile of station by following wash from the mine. 
Station mark: A bronze triangulation tablet cemented in rock and 
placed under center of cairn 8 feet high. 
[a Latitude 32° 51' 26.38". Longitude 114° 45 / 09.10".] 
[^Latitude 32° 51/ 27.53". Longitude 114° 45' 08.18".] 
To station- 
Azimuth. 
Hack azimuth. 
Log. distance, 
Sandy 
O 1 II 
&39 59 10.25 
& 80 54 55. 70 
& 94 20 50. 67 
a 165 40 41. 19 
a 209 57 00. 53 
a 251) 13 38. 72 
a 286 14 lis. 7:: 
a 322 06 18.04 
"357 44 03.76 
&357 44 01.80 
O / /' 
219 54 43. 91 
260 47 44. 70 
274 10 09. 72 
345 38 23.65 
30 02 27. 81 
76 19 48.46 
106 22 49.75 
142 10 39.78 
177 44 15.19 
177 44 13.23 
Mett rs. 
4. 2995209 
Blizzard 
4. 3208401 
1 [ardy 
4. 4884104 
Quartz 
4. 4231629 
Clip 
Ridge 
4. 4945347 
4. 2607025 
Sugarloaf 
4. 41579 31 
Yuma, azimuth station 
4.3116694 
Pilot 
4.1430949 
Pilot 
4. 1430921 
"From LakeTahoe, United States standard. 
& From Cuyamaca-Tecate, United States standard 
