182 
PKI.MARY TRIANGULATION AND PRIMARY TRAVERSK. 
Jf<»(i, SAX DIEGO COUNTY. 
On a low, bald sand hill 9 miles east from Holtville and about 5 
miles east from the most eastern ditch. There aire several sand hills 
very much like this one within a radius of a mile, but this is probably 
the highest. 
Station mark: A standard bench-mark post set 40 inches in the 
sand. (Summit of this hill will .probably change from time to time.) 
[Latitude 32° 47' 53.73". Longitude 115° 14' 06.53".] 
To station- 
Mesquite 
Sharp 
Holtville 
Sunset. . . 
Hardy . . 
< iravcl . . 
Azimuth. 
O I II 
18 00 17.91 
46 49 36.34 
90 59 58. 74 
165 39 08.03 
238 29 12.31 
320 L6 52.70 
Back azimuth. 
197 59 03.27 
220 44 40.06 
270 55 06. 03 
3,45 37 47. L5 
58 34 14.53 
140 20 18.06 
Log. distance. 
Meters. 
4. 0654886 
4.2910431 
4. 1480281 
4. 1938152 
4. 2302956 
4.1896933 
HOGUE, SAX DIEGO COUNTY. 
On a sand hill with mesquite brush on its side, situated about 8 
miles a Little cast of north from Sunset Springs, and is the most west- 
ern of a row of hills extending from station Sunset to this point, 
parallel with the main sand hills and south of them. 
Signal: A lumber tripod 14 feet high, with target extending 6 feet 
higher. 
Station mark: A standard bench-mark post set 40 inches in the sand 
(probably permanent). 
[Latitude 33° 03 / 29.35". Longitude 115° 19' 26.11".] 
To station— 
Azimuth. 
Back azimuth. 
Log. distance. 
Holtville 
o / // 
11 21 45.21 
311 09 21.39 
342 03 37. 74 
o / // 
191 19 45. 1!) 
131 17 18.58 
102 05 10.01 
N> ters. 
4. 4647390 
Hardy 
Sunset 
4. 4811025 
4. 1578770 
