4.4 Evidence Weighting: Monuments, Measurements, and Occupation

The Priority of Calls (Rules of Construction)

When the elements of a description conflict—say the deed calls a distance that does not reach the called monument—the law applies a priority of calls, also called the rules of construction or dignity of calls. The order, from highest to lowest dignity, is:

1. Natural monuments — rivers, lakes, established trees, ridgelines, boulders.
2. Artificial (man-made) monuments — iron pins, concrete monuments, stone markers, called-for fences set as corners.
3. Calls for adjoiners — references to an adjoining owner's established line.
4. Courses (bearings/directions).
5. Distances.
6. Area (acreage / quantity).
7. Coordinates (lowest, because they depend on a stated datum and computation).

Memorize the relative order: natural monuments > artificial monuments > calls for adjoiners > courses > distances > area. A classic FS trap reverses courses and distances or places area above distance—area is near the bottom, just above coordinates, because acreage is the element most easily misstated and least reliable for locating a line.

Why Monuments Outrank Measurements

The rationale for the order is reliability. A field crew is far more likely to misstate a distance or bearing than to misidentify a monument that the deed specifically calls for and that is recovered, undisturbed, in the field. The monument is the physical evidence of where the original surveyor actually went; the measurement is only a description of how to get there. So monuments control over measurements.

A worked example: a deed call reads "N 45° E, 200.00 ft to an iron pin." The iron pin is found, called-for, and undisturbed at 203.4 ft. The monument controls: the corner is at the pin, and the distance is treated as in error. The retracing surveyor honors the monument and notes the measurement discrepancy.

Occupation Evidence and Rebuttable Presumptions

Occupation evidence—fences, hedgerows, walls, driveways, long-standing improvements—is important but must be weighed correctly. Occupation is corroborating evidence that can help locate the original line, especially when monuments are gone, but a fence is not automatically the boundary. A fence first has to be evaluated: was it built to the line, is it the original line of occupation, or is it merely a convenient barrier? Long, undisputed occupation may support a boundary by other doctrines (covered later), but standing alone it does not override controlling record evidence of where the original corners were set.

Two cautions the exam emphasizes:

• The priority of calls is a set of rebuttable presumptions, not absolute commands. If the intent of the parties is clear from the whole instrument, that intent governs and can reorder the presumptions.
• A monument controls only after its identity and reliability are established. A disturbed, uncalled-for, or wrong monument does not control simply because it is physical.

The surveyor therefore gathers all classes of evidence—record, physical, and testimonial—and weighs each in context rather than mechanically applying a single rule.

Original vs. Obliterated vs. Lost Corners

The weight a monument carries depends on its status, a distinction the FS exam tests directly:

• An existent (original) corner is one whose position can be identified by the original monument or undisturbed evidence of it. It controls absolutely—you accept it where it is.
• An obliterated corner is one whose original monument is gone, but whose position can still be recovered from collateral evidence: occupation, testimony, reference ties, fences built to it, or adjoining surveys. An obliterated corner is not lost; it is re-established at its proven original position.
• A lost corner is one whose position cannot be recovered from any acceptable evidence and must be re-established by proportionate measurement from the nearest existent corners.

The sequence is strict: a corner is lost only as a last resort, after every avenue of collateral evidence is exhausted. Reaching for proportionate measurement too soon is a classic error, because it substitutes mathematics for the original surveyor's actual footsteps.

Proportionate measurement

When a corner truly is lost, single proportion (along a line) or double proportion (at a section corner controlled in two directions, used in the PLSS) distributes any discrepancy between record and measured distances proportionally among the affected intervals. Proportioning honors the principle that the original record dimensions were intended to be correct relative to one another, so the surplus or deficiency is spread, not dumped on one interval. The method re-creates the most probable original position when no better evidence survives.

Even then, proportioning yields to any recovered evidence of the true original location—the goal is always to find where the original corner was, not where the numbers say it should be. In short, the hierarchy of corner restoration is: accept an existent original corner, recover an obliterated corner from collateral evidence, and only then proportion a truly lost corner.