CALIFORNIA. 
AMERICAN, SAN DIEGO COUNTY. 
187 
On highest point of a range of mountains lying east of the American 
gold mine, and is 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 up wash from the mine. 
Station mark: A bronze triangulation tablet cemented in root and 
placed under center of cairn 8 feet high. 
[Latitude 32° 51' 26.38". Longitude 114° 45' 09.10".] 
To station- 
Quartz 
Clip 
Ridge _ . 
Sugarloaf 
Yuma Azimuth 
Pilot _ _ 
Azimuth. 
Back azimuth. 
165 40 41.19 
209 57 00.53 
256 13 38.72 
286 14 08. 73 
322 06 18.04 
357 44 03. 76 
345 38 23.65 
30 02 27.81 
76 19 48.46 
106 22 49.75 
142 10 39. 78 
177 44 15. 19 
Log. distance. 
Meters. 
4. 4231629 
4. 4945347 
4.2607025 
4.4157937 
4.3116694 
4. 1430949 
DELTA, SAN DIEGO COUNTY. 
On a small bump near the east end of the black ridge bounding the 
Yuma Valley on the north, on the west or California side of the Colo- 
rado River. Reached from Fort Yuma, Cal., by wagon road to foot 
of ridge. Follow the Potholes road for 10 miles, more or less, then 
turn off across desert for one-half mile to foot of ridge. There is a 
500-foot climb from where wagon is left to the station. 
Station mark: A large bowlder marked with drill holes, triangles, 
u s 
and letters, thus: A Over the mark is built a cairn 6 feet high. 
[Latitude 32° 50' 34.39". Longitude 114° 31' 26.90".] 
To station- 
Azimuth. Back azimuth. 
Log. distance. 
American 
94 20 47.57 
148 15 11.28 
274 13 21.57 
328 13 54.72 
Meters. 
4. 33122 
Ridge 
3. 84313 
Azimuth _.-.-.. 
4. 23145 
Sugarloaf . . 
3. 82999 
PORT GASS, S 
AN DIEGO C( 
3UNTY. 
On the summit of a very prominent rocky peak, about 3^ miles 
from the Colorado River at the nearest point, and the same distance 
from the wagon road from Ehrenberg to Picacho, on the California 
side of river. Station is about 30 miles up the river from Picacho, 
