Boundary and Title Surveying: Retracement, Evidence, and Unwritten Rights
Retracement versus original survey
A boundary survey that creates a parcel and one that merely retraces it are legally different acts. The retracement surveyor recovers the original boundary; the surveyor does not "correct" the record. Almost every exam item turns on identifying which class of evidence controls.
The hierarchy of evidence
Common-law order: (1) natural monuments (rivers, trees, rock outcrops), (2) artificial monuments (set stones, iron pins, pipes), (3) courses and distances, (4) area or quantity. Written calls yield to monument evidence unless the monument is proven misplaced by the original surveyor or is not the monument called for. Traps: applying proportional measurement when original corners still exist; treating a record distance as more reliable than a found original corner; confusing a witness corner with the true corner; overlooking that a deed call to an adjoiner's line incorporates that line as it actually exists.
Title is not boundary
Title passes by written instrument; boundaries can also be moved by unwritten means: adverse possession, practical location, acquiescence, estoppel, and boundary agreement. Riparian and littoral lines shift with accretion and reliction but not with avulsion. Easements by prescription, implication, necessity, and grant each have distinct elements. Junior/senior rights and simultaneous conveyance doctrine govern conflicting overlaps.
Worked rule of thumb
Proportional measurement applies only when both controlling corners are original and the missing point lies on a single record course. Record: 500.00 ft between original corners A and B, with a called-for point at 300.00 ft from A. Measured A to B = 502.50 ft. Proportion: 300.00 x (502.50 / 500.00) = 301.50 ft from A.