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...
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...
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...
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...