136 PRIMAEY TRI ANGULATION AND PRIMARY TRAVERSE. 
PENNSYLVANIA . 
TRIANGULATION STATIONS. 
JUNIATA AND PERRY COUNTIES. 
LOYSYILLE A\D HONEYGROYE QUADRANGLES. 
Control for these two quadrangles was obtained in September, 1904, 
by Mr. George T. Hawkins, topographer, who extended triangulation 
westward from stations Newport and Peters. In addition to reoc- 
cupying these Mr. Hawkins selected, built, and occupied six new 
stations. 
BIG KNOB, PERRY COUNTY. 
On spur of Tuscarora Mountain, about 3 miles northwest of Blair, 
Pa. It is reached by going 1 mile on Newport road and turning to 
left through lane up to top of ridge by wood road, then going 1 mile 
west along ridge to signal. 
Signal: Red-oak tree 8 inches in diameter. 
Station mark: A bronze triangulation tablet cemeneted in solid rock. 
Reference marks: The red-oak signal tree; true azimuth, 123° 55'; 
distance, 14 feet from station mark. 
[Latitude 40° 21 / 37.42". Longitude 77° 32' 46. 05".] 
To station— 
Azimuth. 
Back azimuth. 
Lo^. distance. 
Blair 
O 1 II 
52 47 07 
150 58 40 
225 00 15 
276 22 09 
o / // 
232 41 32 
330 55 51 
45 05 22 
96 29 36 
Meters. 
4. 18586 
Shade 
4. 10210 
Tuscarora 
4. 19821 
Bowers 
4. 21447 
BLAIR, FRANKLIN-JUNIATA COUNTY LINE. 
(Not occupied.) 
On a knob on the Tuscarora ridge, about 2 miles east of Blair, Pa. 
The knob was nearly cleared of timber and one tree left for signal, 
with white flag in top. The point is reached by going about 1.5 miles 
southeast on road from Blair to old sawmill, then up the mountain on 
foot. 
Station mark: The lone signal tree. 
[Latitude 40° 16' 36.30". Longitude 77° 41 / 23.18".] 
To station- 
Azimuth. 
Back azimuth. 
Log. distance. 
Shade 
o / // 
196 32 58 
232 41 32 
O / II 
16 35 44 
52 47 07 
Meters. 
4. 3269a 
Big Knob 
4. 18586 
