228 PRIMARY TRI ANGULATION AND PRIMARY TRAVERSE. 
[Latitude 31° 03' 55. 1". Longitude 104° 42' 33.9".] 
To .station- 
Azimuth. 
Back azimuth. 
Log. distance. 
O 1 II 
O 1 II 
Meters. 
4. 4877565 
4. 6748098 
4. 3880670 
NORTH DIABLO, EL RAMO COUNTY. 
(Not occupied.) 
On the highest point of the Sierra Diablo, on the bluffs overlooking 
the Salt Flat road and the Figure Two headquarters ranch. Thirty- 
live miles north of Vanhorn, 12 miles northeast of Bounds u Dagger 
Tank." A dim road leads from this tank to 0.5 mile south of station. 
Station mark: A cross mark cut deep in the rock, over which is a 
pile of stone 2 feet high and a tree signal. 
Reference marks: A bronze triangulation tablet cemented in the 
solid rock and bearing N. 59° 17' W., distant 25.6 feet from station 
mark. 
[Latitude 31° 26 / 51.7". Longitude 104° 54 / 14.2".] 
To station — 
Azimuth. 
Back azimuth. 
Log. distance. 
Diablo 
o / // 
O 1 II 
Meters. 
4. 4436025 
Delaware 
4. 4294808 
7 : Heart 
4. 7235100 
Chispa 
4. 8687802 
7: HEART, EL PASO COUNTY. 
About 35 miles northeast of Vanhorn and 10 miles north of Boracho. 
On the highest point of the long bluffs overlooking Toyah and all the 
country northeast. About 5 miles southeast of 7 : Heart Gap and 5 
miles from Joe Shea's ranch. Pack animals can be taken to the sta- 
tion from the old Salt road which passes just beneath it on north side. 
Permanent water at Joe Shea's ranch or Ed Jones's ranch. 
Station mark: A bronze triangulation tablet cemented in the solid 
rock, over the exact center of which is built a rock monument 8 feet 
high. 
Reference marks: A cross mark and the letters "U. S." cut deep in 
the solid rock bears northeast 14.1* feet; true azimuth, 249° 24'. 
Another cross mark in the rock bears northwest 10.6 feet; true azi- 
muth, 130° 22'. 
