From "A Practical Guide to Disputes Between Adjoining Landowners - Easements", by Backman & Thomas, the Intro to Chap 8, 'Boundary Disputes', you will find the following:[i]
8.01 Introduction and Chapter Overview
Setting boundaries between adjoining properties is a commonly recurring problem. Care should be taken in the first instance to use an accurate description in all transactions involving real property. The first section of the chapter explores judicial doctrines of construction utilized in choosing between alternative possibilities of meaning of ambiguously stated property descriptions.
The record description of a property boundary is merely the first element in establishing the actual boundary line between properties. In order to establish the actual location of the boundary, property owners are regularly assisted by professional surveyors who scientifically determine the location on the ground.
Property surveys are the surest means of establishing an accurate boundary. Because they involve an additional expense in the conveyance of properties, however, many property owners disregard this measure of safety. As a consequence,[b] a number of doctrines have been established in order to give recognition to boundaries which have been set by the acts of one or both of the adjoining property owners.1 In addition to adverse possession, considered in Chapter 7 supra, boundary disputes may also be settled through the application of three other judicial doctrines—boundary by agreement,2 boundary by acquiescence3 and boundary by estoppel.4 Under these three doctrines, adjoining owners may create a boundary that differs from the record description if that boundary has been established and recognized for a substantial period of time[/b]. All of these doctrines are intended to achieve similar policy objectives, i.e., to promote efficient use of property, to reduce litigation, to establish a status of repose, to remove stale claims, and to avoid the necessity of producing evidence as to events from the distant past.5[/i]
Remember, Iowa recently passed a 'Boundary by Acquiesence' statute and many other states have similar statutes of repose or limitation that will recognize the established physical boundary as the legal one and it is the surveyor's responsibility, (NOT THE LAWYERS OR JUDGES), to recognize when a particular statute or legal principle applies to the survey.
Interpreting deeds, not perpetuating them, is the surveyor's professional work product and deciding when a record description needs to be corrected is the surveyor's responsibility along with knowing what process is used in your state to create and record any necessary corrections.