54 
PRIMARY TRIANGULATION AND PRIMARY TRAVERSE. 
MARYLAND. 
PRIMARY TRAVERSE. 
CARROLL, FREDERICK, HOWARD, AND MONTGOMERY COUNTIES. 
MONOCACY, RIDGEVILLE, ROCKVILLE, AND SENECA QUADRANGLES. 
The following geographic positions on the United States standard 
datum were obtained from primary traverse run in 1904 by Mr. C. B. 
Kendall. The first line starts from the west tower of the Lutheran 
Church at Frederick, Md., a triangulation station of the United States 
Coast and Geodetic Survey, and follows highways north to the edge 
of the quadrangle, and thence east through Libertytown, Unionville, 
and Winheld, and connects with line run in 1902 by Mr. E. L. McNair, 
li miles north of Bennett post-office at the junction of the Washington 
and Liberty roads. Line No. 2 starts at Libertytown and follows 
highways south through New Market to Brink post-office; thence west 
to the Chesapeake and Ohio Canal at the mouth of the Monocacy River; 
thence along the canal to Noland Ferry and north to Frederick. Line 
No. 3 starts at Brink and follows highways east through Goshen and 
Laytonsville to Glenelg, where it connects with point located in 1902 
by Mr. E. L. McNair and in 1903 by Mr. C. B. Kendall. Line No. 4 
starts at Brink and follows highways south through Gaithersburg and 
Travilah to the Chesapeake and Ohio Canal. Line No. 5 starts from 
the Monocacy River aqueduct of the Chesapeake and Ohio Canal and 
follows the canal south and east, connecting with line No. 4, and thence 
east along highways through Potomac and connects with line run in 
1903 by Mr. C. B. Kendall 1 mile west of Burnt Mills. 
FREDERICK COUNTY, MONOCACY QUADRANGLE. 
Geographic positions along highways. 
t 
Station. 
Latitude. 
Longitude. 
Frederick, west tower of Lutheran Church 
Frederick, Seventh and Market streets, junction of, 45 
feet west to fountain, 55 feet northeast to brick corner 
post of yard 
Warmon'smill, junction of pikes, 50 feet northeast to mail 
box, 35 feet west to telephone pole at fence corner 
Harmony Grove station, 200 feet southwest of, Baltimore 
and Ohio Railroad and pike crossing 
Toll gate, 3 corners at, 12 feet north to southeast corner 
of porch „ 
Three corners, 25 feet northeast to fence corner post, 25 
feet southeast to corner stone fence 
Harrisville, forks of road 
Three corners, 35 feet southeast to blazed locust tree, 25 
feet west to pole fence 
39 
39 
39 
39 
39 
39 
39 
24 55. 3 
25 21. 7 
26 37. 4 
27 10.4 
28 03. 6 
28 54. 3 
29 51.6 
39 30 32. 3 
77 24 34. 1 
77 24 34. S 
77 23 41. J 
77 23 58.: 
77 24 09. : 
77 23 45. ! 
77 24 07.: 
77 23 53. 1 
