Dale....Back in the 1950's I pull one end of the chain trying to establish lane lines. They some time didnt fit the plat. Some of the markers was a hilaous joke,such as a big rock in the run of the creek. After hunting this rock for about half day it turn out to be about size of two fist. in a stream that could easy move it around during the rainy season. It was after 1950 that corners was permant Identified. Due to the lack of good land lines and corner cause alot of hard feelings amongst neighbors....Jones