CALIFORNIA NEVADA. 
!1 
Station mark: A triangulation tablet cemented in rock at foot of 
pole. 
[Latitude, 37° 45' 23.65", Longitude, 119° 35' 33.31".] 
To station- 
Azimuth. 
Back azimuth. 
Log. 
distance. 
Eagle 
Flat 
Clouds Rest.. 
Glacier Point. 
Valley 
Sentinel Dome 
139 
261 
328 
347 
347 
02 33.99 
26 08.84 
56 19. 84 
30 09.89 
13 35.42 
51 15.89 
239 01 46.76 
319 24 08.84 
82 00 09. L3 
148 30 53.24 
167 13 43. OS 
167 51 35.66 
Meters. 
3. 3428995 
3.8673813 
3.96113925 
3.5210068 
3.1417253 
3. 5750603 
CAIilFC )RNIA NEVADA. 
TRIANGULATION STATIONS. 
ESMERALDA AND NYE COUNTIES, NEV.; INYO COUNTY, CAL. 
AMARGOSA REGION. 
During the field season of 1905-6 triangulation control was extended 
over a large part of southern Nye County, Nev., and a small area 
adjacent to Death Valley, in Inyo County, CaL, by R. H. Chapman and 
B. D. Stewart, topographers. The work was more of a reconnais- 
sance than a standard nature and was done in connection with topo- 
graphic surveys, which were carried on rapidly. The foresights were 
made to the natural points selected, and signals were erected when 
the points were occupied for observations. The stations were marked 
and signals erected according to regulations of the Survey. The 
instruments used were the standard 8-inch theodolites reading to 2 
seconds of arc. 
The scheme was carried forward from the line Lone Mountain- 
Montezuma, the first a primary and the second a secondary or ter- 
tiary point of the United States Coast and Geodetic Survey. The 
value of this base is taken from finally adjusted figures in the scheme 
brought from points in California during 1905 by Mr. Urquhart. 
The initial position is that given for Lone Mountain by the Coast 
Survey, and is on the United States standard datum. 
Figures were extended about 1^° eastward from Lone Mountain 
and tied to the secondary Coast Survey point Kawich, which was 
occupied, and by long, unclosed sights to the primary point White 
Pine. 
From these figures the scheme was carried southward to the Death 
Valley region and tied to triangulation points Grape and Nye, estab- 
lished by the Coast Survey in connection with the survey of the 
Nevada-California oblique boundary. 
In all cases the preliminary positions, azimuths, and distances 
agreed so closely with those given by the Coast Survey that no figure 
adjustment was made, it being considered that the preliminary 
