90 PRIMARY TRIANGULATION AND PRIMARY TRAVERSE. 
Geographic positions along Baltimore and Ohio Railroad near Billon. 
Station. 
Latitude. 
Longitude. 
O 1 II 
39 59 38.0 
39 58 57.7 
39 58 17.0 
82 05 07. 9 
Milepost 83, center of track opposite 
Dillon station, road crossing 
82 04 09.9 
82 03 30.8 
Geographic positions along highways. 
Station. 
Dillon, 0.75 mile north of station, on east side of river, T road east, 25 
feet southeast to cross on board fence, 27 feet northeast to cross on 
corner fence post 
Harris's farm, crossing of Frostburg road and east-west road, 33 feet 
southwest to cross on telegraph pole, 27 feet northeast to cross on 
telegraph pole 
Zanesville, 3 miles north of, J. N. Blair's farm, T road west, 33 feet 
northwest to cross on board fence, 10 feet east to cross on gatepost . 
Latitude. 
39 58 49. 6 
39 58 4(1. 5 
39 58 45. 
Longitude. 
82 03 05. 6 
82 01 01.8 
82 00 14.7 
Geographic positions along Wheeling and Lake Erie Railroad, near Zanesville. 
Station. 
Latitude. 
1 
Longitude. 
Zanesville, Monroe Street Bridge over railroad 
/ // 
39 57 05. 5 
39 50 30.6 
39 55 35.4 
39 54 15.9 
82 00 06. 
82 01 23. 1 
Owen (J. B.) Pottery Co.'s plant, just south of, road crossing under 
82 01 43. 
82 00 14.4 
Geographic positions along highways. 
Station. 
Muskingum-Morgan county line, center of road at, 30 feet due east to 
dead beech tree at corner of fence 
Morgan County line, 0.33 mile south of, stone at crossroads, 25 feet 
south to cross on fence post, 54 feet northeast to corner of ba rn .... 
Muskingum-Morgan county line. 0.5 mile south of, in southeast corner 
of foundation to brick house of N. H. Fletcher on the Dillon-Dover- 
town road, aluminum tablet stamped "Prim. Trav. Sta. No. 04, 
1905" 
Dovertown 1.5 miles northeast of, at Charles Bush's residence, T road 
east, 40 feet to C. A. Fletcher's mail box, 9 feet south to west end of 
box culvert 
Latitude. 
Longitude. 
O / If 
/ // 
39 40 05.9 
82 00 15.6 
39 45 50. 7 
82 00 20.6 
39 45 43. 
82 00 31.1 
39 45 01.4 
82 01 18.7 
PENNSYLVANIA-NEW YORK. 
TRIANGULATION STATIONS. 
WARREN COUNTY, PA.; CHAUTAUQUA COUNTY, N. Y. 
WARREN AND YOTJNGSVILLE QUADRANGLES. 
During the summer of 1905 E. L. McNair, topographer, located 
eight new stations for the control of these two quadrangles, one oi 
these stations being in Chautauqua County, N. Y., near the State line. 
This triangulation was based on Meas and Busti, two stations of the 
Geological Survey in Chautauqua County, N. Y., established by A. H. 
Thompson in 1902. 
