188 PRIMARY TRI ANGULATION AND PRIMARY TRAVERSE, [bull. 216. 
and is west of the upper end of Apache Island. This is the most 
prominent peak in this part of the country, and is known by some as 
"Fort Gass" and others as "Milpitas." 
Station mark: A bronze triangulation tablet cemented in rock 
under center of a cairn 8 feet high. 
[Latitude 33° 19' 45.13". Longitude 114° 46' 30.64".] 
Quartz 
Hodges - - 
Mulewash 
Chocolate 
Clip._. 
To station- 
Azimuth. 
9 07 38.33 
189 49 30.93 
230 40 15. 12 
285 31 16.39 
324 44 57.89 
Lava. .I 351 45 55.50 
Back azimuth. 
189 06 07.87 
9 50 36. 16 
56 47 15.95 
105 38 19.19 
144 51 15.20 
171 47 04.97 
Log. distant 
Meters. 
4. 4314275 
4. 2534061 
4. 3736406 
4. 3155582 
4. 4905956 
4. 3607200 
HEDGES, SAN DIEGO COUNTY. 
(Not occupied.) 
On the highest point of a range of white mountains, about 15 miles 
northwest of Yuma, about 3 miles northeast of Hedges mine, and 3 
miles a little west of north of American gold mine. A good road 
from Yuma to Hedges, and from latter place the station can be seen. I 
Station mark: An aluminum bolt cemented in rock under center of; 
a cairn 8 feet high. 
[Latitude 32° 53' 32.32 ". Longitude 114° 47' 53.34".] 
To station- 
Ridge 
American 
Clip 
Quartz. .. 
Lava 
Pilot 
Azimuth . 
Azimuth. 
268 46 44.59 
312 14 49.78 
Back azimuth. 
88 54 23.69 
132 16 18.93 
Log. distance. 
Meters. 
4. 34195 
3.76109 
4. 48460 
4. 34067 
4. 41960 
4.26514 
4. 41828 
LAVA, SAN DIEGO COUNTY. 
On a high rocky peak about 4 miles from the Colorado River at the 
nearest point, and is south 59° west from Draper's Ranch, and can be 
seen from his house or the rock close by it. Take road from Picachol 
or Ehrenberg on California side of river which goes by Drapers. Go 
up first big wash below Draper's and follow it to base of peak, then 
