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Is the GPS always right?

Just because a land surveyor chooses to use GPS does not automatically make the result absolutely correct. GPS is really just another measuring device, just like a measuring tape. Yes, GPS is a valuable tool to use in the right circumstances. We can quickly measure long distances without a line of sight between the two points we are measuring, for instance. But a licensed land surveyor still has to interpret the data they collect just as surveyors always have, read and understand deed descriptions, and use sound professional judgment when making decisions before concluding where a property line is located.