You may be provided with a plat of your property, but unless the land has been recently surveyed and pins placed by a licensed surveyor, you cannot assume that the plat or existing property pins are accurate. Many of the original property pins are still in existence on properties. They are made of rebar and can often be located with the use of a metal detector. If your pins cannot be located, then a survey may be necessary. Fences that separate properties are often misaligned with the property lines, so it is important to know where your property pins are located in order to avoid problems later.