GeoHistory Resources

Triangulation, City of Philadelphia. U.S. Coast and Geodetic Survey, J. E. Hilgard, Supt. Observations made by C. H. VanOrden, Assistant, C. H. Sinclair, Assistant, under the direction of Spencer McCorkle, Assistant. , 1885

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Work Title:
Triangulation, City of Philadelphia. U.S. Coast and Geodetic Survey, J. E. Hilgard, Supt. Observations made by C. H. VanOrden, Assistant, C. H. Sinclair, Assistant, under the direction of Spencer McCorkle, Assistant. , 1885
Creator:
McCorkle, Spencer C.
Date:
1885
Physical Format:
31 x 36 in.
Map Features
Location of triangulation points used to create accurate surveys
Media
Tracing
Scale
1:20000, or 1 inch = 1666 feet
Source:
Image File(s):
RC-Q-03