DCHP-3

proof line

Obs.
DCHP-1 (pre-1967)

Entry from the DCHP-1 (pre-1967)

This entry may contain outdated or offensive information, terms, and examples.

in government surveys, the east-west line that functions as a starting point for the parallel lines demarcating blocks, townships, etc.

Quotations

1810
I proved every concession line that I ran by measuring on the said proof line, and can safely say that the operation is very correct.
1853
He was last seen alive in the Tavern . . . on the Thursday night previous, and in a very intoxicated state left for home by the 8th concession east of the proof-line, across which runs a very dangerous creek.