No. The unconfirmed accuracy of property lines in a digital map combined with the varying accuracy of handheld GPS devices can set you off from the true location of the line by several meters. For example, a property line that measures 28m long on a survey plan (plotted on a 1:10,000 scale paper map to the best of any property mapper’s ability at the time, then digitized), may end up being anywhere from 21m to 35m long on the digital property map.