The Boundary Survey is a means of marking boundaries for sufficient definition and identification to uniquely locate each lot, parcel, or tract of land.  The purpose of a boundary survey is to establish, reestablish, or describe, or all of these, the physical position and extent of the boundaries of real property.  Unless otherwise directed by the party requesting the survey, sufficient monuments or reference control points which were used to determine the property lines shall be: set or recovered on the ground, to the extent feasible; and shown on a plat upon completion of the boundary survey so that the property lines can be determined or readily reestablished.

In other words, unlike a Location Survey, a Boundary Surveys do provide for the accurate identification of property boundary lines and can be relied upon for the establishment or location of fences, garages, buildings, or other existing or future improvements.