In my area (suburban Twin Cities, MN, USA), while you may not see visible property markers, they are nearly always there in the form of buried metal property ma

In my area (suburban Twin Cities, MN, USA), while you may not see visible property markers, they are nearly always there in the form of buried metal property marking pins. These are typically just an inch or two below the surface. We recently built a fence, and prior to that went around the four corners of the yard with a toy metal detector and were able to locate all four pins, marking them with flags for the fence installation crew.