witness mark n. generally, an intentional, accidental, or naturally occurring spot, line, groove, or other contrasting area that serves as an indicator of certain facts; in geography and surveying, a blaze, cut, hole, paint splash, or message...
witness post n.— «Where it is impossible to put up and keep a post or monument at the proper place, a witness post or monument may be used.» —by George Purcell Costigan Jr. Handbook on American Mining Law (St. Paul, Minnesota) , 1908. (source:...
witness post n.— «As surveys progressed, various improvements were introduced to secure regularity and convenience of description, by the establishment of base-lines, meridians, and standard parallels, through certain permanent natural points, the...
witness post n.— «Sara Yurman, 33, is a geographer with the Gwinnett County planning department who specializes in mapmaking. She found a “witness post” in the Modoc community, a rare thing, so she said, that showed that Modoc sits 5 feet above sea...
witness post n.— «In recent years the state of Louisiana has embarked on the grueling process of improving its infrastructure maps. People trudge through marshes looking for so-called witness posts, aboveground markers for pipelines. After one such...
spello n.— «I was around for a few momentous typos and spellos (a term my friend uses for words that are misspelled not by accident, but because you really didn’t know the right spelling and didn’t check.) I got to witness e-mail pouring in about...

