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: Double-Tongued Dictionary)
Further reading
When a musician is woodshedding a passage of music, they’re trying to master that part by repeatedly practicing it in private, as if having retreated to do so in a woodshed, away from others who might be bothered by it. This is part of a...
In our earlier conversation about the term clam, which musicians use to refer to a “missed note” or “musical mistake,” Martha misspoke and said a similar term was used in rowing and sculling. Actually, as many listeners...