PRIMARY TRIANGULATION AND PRIMARY TRAVERSE. 225 
TEXAS. 
TRIANGULATION STATIONS. 
EL PASO COUNTY. 
VANHOKN (JUADRANGLE. 
In the summer of 1904 Mr. Arthur Stiles, topographer, obtained 
additional control for the Vanhorn quadrangle by occupying two old 
stations, Chispa and Diablo, and two new stations, Delaware and 
7: Heart, from which he located numerous secondary points, by inter- 
sections. 
Positions are based upon the Sierra Blanca base and astronomic 
station. 
ALLAMOORE, EL PASO COUNTY. 
(Not occupied.) 
The highest peak in the mountains 1 mile southwest of Allamoore 
section house and 10 miles west of Vanhorn. Pack animals can be 
taken to the station from Allamoore. Permanent water in Texas and 
Pacific Railroad water tank 2 miles west of Allamoore. - 
Station mark: A bronze triangulation tablet cemented in solid rock 
under center of rock monument 6 feet high. 
Reference marks: A cross mark and the letters "U. S." cut deep 
in the rock bears N. 14° 00' E., distant 3.8 feet. Another cross 
mark cut in the rock bears S. 69° 15' E., distant 20.6 feet. 
[Latitude 31° 03' 17.0". Longitude 104° 58' 46.3".] 
To station- 
Azimuth. 
Back azimuth. 
Log. distance. 
Delaware 
O 1 II 
O / II 
Meters. 
4. 7672985 
Diablo „ 
4. 2301358 
7: Heart 
4. 7405816 
BAYLEK, EL PASO COUNTY. 
(Not occupied.) 
On the highest point in the north end of the Bayler Mountains, 
about 16 miles north of Vanhorn, and 1 miles southwest of Marley's 
lower windmills. Pack animals can be taken to the station from 
northeast side of mountain. Water at lower windmills. 
Station mark: The center of a rock monument 6 feet in diameter 
and 5 feet high. 
Reference marks: A bronze triangulation tablet cemented in the 
solid rock bears N. 18° 00' W., distant 31.2 feet. A cross mark and 
the letters " U. S." cut deep in the solid rock bears N. 76° 00'' W., 
distant 22 feet. 
Bull. 276—05 15 
