Movement

How many monuments do you find moving?

I've got some areas where the movement is substantial. One C1/4 moves about 8" every ten years to the SE. A township brass cap moves SW about 1' per decade. Yesterday the PC located 15 monuments from a prior 2005 survey and three of them have moved, averaging about .15'. These are easy to spot; concrete ROW monuments leaning along the fill side of a highway. 

GPS has made it much better to track some of the areas with movement. We saw it during instrument surveying also.