Traditional methods employed to interpret ambiguous agreements or title documents are called Rules of Construction. These rules are to be invoked in ascertaining boundaries only when there is a conflict or inconsistency in the calls found in the field-notes or between the calls in deeds and those of the field notes.
If an accurate description can be built up from existing government monuments and field-notes, there is no uncertainty in the boundary line.
In a dispute, the courts will construe the evidence (interpretation of words) most strongly against the party who writes the deed (8, 11). The United States is considered as the writer when a patent for a parcel of land is issued.