
FILE - In this April 18, 1958 file photo, Philip N. Brooks, right, a New York State surveyor, takes a look through his transit on the Tuscarora Indian Reservation near Niagara Falls, N.Y., while Tuscarora Chief Elton Black Cloud Greene watches. The tribe is resisting state seizure of their land for a power project. In 1959, the U.S. government started the switch from the U.S. survey foot to the international foot, and it will finish the job in 2022.
The reason? There are actually two different definitions of the 12-inch measurement known as a foot.
Some land surveyors use what's known as the U.S. survey foot. Others use the definition that's more accepted by the broader world: the international foot.
The difference between them is so tiny that you can't see it with the naked eye on a 12-inch ruler. But over big distances, it matters. So, to reduce the chance for errors and confusion, the federal government has announced it's finally giving the boot to the survey foot.















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