Rod unit Wikipedia
The rod perch or pole sometimes also lug is a surveyor s tool and unit of length of various historical definitions often between 3 and 8 meters In modern US customary units it is defined as 16 1 ⁄ 2 US survey feet equal to exactly 1 ⁄ 320 of a surveyor s mile or a quarter of a surveyor s chain and is approximately 5 0292 meters The rod is useful as a unit of length because whole