KY Land Surveyor study materials
KY Land Surveyor study resources

KY Land Surveyor key terms

KY Land Surveyor · Get comfortable with the vocabulary.

Monumentation

The physical placement of durable marks, such as iron pins, concrete posts, or drill holes, at boundary corners or reference points so that a location can be identified and reestablished later.

Related: Corner Perpetuation, Original Monument, Witness Corner
Corner Perpetuation

The practice of preserving and protecting existing boundary evidence, including monument records, accessories, and physical ties, so future surveyors can retrace a boundary without ambiguity or reliance on memory.

Related: Monumentation, Witness Corner, Perpetuation of Evidence
Original Monument

A monument placed at the time a parcel was originally created by a survey, such as a government land survey corner or a subdivision lot pin, which carries the highest evidentiary weight in boundary retracement.

Related: Monumentation, Retracement Survey, Unwritten Rights
Witness Corner

A monument placed near a true corner but offset from it, often because the corner location is impractical to occupy, and tied by distance and bearing so the true corner can be reestablished.

Related: Monumentation, Reference Monument, Corner Perpetuation
Reference Monument

A monument set away from a corner and connected to it by a measured course, used to help relocate the corner if the original mark is destroyed or disturbed.

Related: Witness Corner, Monumentation
Retracement Survey

A survey performed to reestablish the location of an existing boundary line or corner by recovering and evaluating original evidence rather than creating a new boundary.

Related: Original Monument, Unwritten Rights, Rule of Intent
Unwritten Rights

Boundary interests created by long, open, and continuous use or acquiescence rather than by written deed, such as prescriptive easements or boundary by acquiescence recognized under state law.

Related: Adverse Possession, Boundary by Agreement, Easement by Prescription
Adverse Possession

A doctrine allowing a person to acquire title to land through open, notorious, exclusive, hostile, and continuous possession for a statutory period, subject to state-specific requirements and exceptions.

Related: Unwritten Rights, Boundary by Agreement
Boundary by Agreement

A doctrine enforcing a boundary line that adjoining owners have agreed to and treated as their boundary, often when the true line is uncertain, even if the agreed line differs from the deed location.

Related: Unwritten Rights, Acquiescence
Acquiescence

Passive acceptance of a boundary or use over time, which may support a boundary by acquiescence claim when adjoining owners treat a line as the boundary for the statutory period.

Related: Boundary by Agreement, Unwritten Rights
Easement by Prescription

A right to use another's land acquired through open, adverse, and continuous use for the statutory period, similar to adverse possession but granting use rather than title.

Related: Unwritten Rights, Adverse Possession
Rule of Intent

The principle that a deed or survey should be interpreted to carry out the parties' intent at the time of the original conveyance, guiding resolution of ambiguities in boundary descriptions.

Related: Retracement Survey, Deed Construction, Senior Rights
Deed Construction

The legal process of interpreting the language of a deed, applying rules such as natural monuments prevailing over courses and distances, to determine the intended boundary location.

Related: Rule of Intent, Calls for Monuments, Senior Rights
Calls for Monuments

Deed language that identifies a boundary by reference to a physical object, such as a tree, stone, or stake; these calls generally control over courses and distances when they conflict.

Related: Deed Construction, Original Monument
Senior Rights

The doctrine that an earlier conveyance or survey generally prevails over a later one when the two conflict, so the later parcel takes only what remains after the senior boundary is honored.

Related: Rule of Intent, Deed Construction
Perpetuation of Evidence

The recording and preservation of measurements, monument descriptions, and ties made during a survey so that the evidence remains available to future surveyors and courts.

Related: Corner Perpetuation, Monumentation
Plat

A drawing, often recorded with a government office, showing parcels, streets, easements, and monuments in a subdivision or survey, with dimensions and references sufficient to locate the boundaries.

Related: Subdivision Plat, Certificate of Survey, Dedication
Subdivision Plat

A recorded map dividing land into lots, blocks, streets, and public areas, typically approved by local authorities and serving as the controlling description for the lots it depicts.

Related: Plat, Dedication, Lot and Block Description
Dedication

The intentional conveyance of private land, such as streets or parks, to public use, often shown on a plat and accepted by the governing body, creating public rights in the land.

Related: Subdivision Plat, Plat
Lot and Block Description

A method of describing land by reference to a lot and block number on a recorded plat, together with the plat's name and recording information, rather than by metes and bounds.

Related: Plat, Subdivision Plat
Metes and Bounds Description

A boundary description that defines a parcel by a sequence of courses and distances between monuments or points, returning to the point of beginning to close the figure.

Related: Point of Beginning, Calls for Monuments
Point of Beginning

The starting point of a metes and bounds description from which the traverse proceeds and to which it should return, anchoring the description to a recoverable location on the ground.

Related: Metes and Bounds Description, Closure
Closure

The degree to which a survey traverse or boundary description returns to its starting point, often expressed as a ratio of misclosure to total traverse length; a measure of internal consistency.

Related: Point of Beginning, Traverse Adjustment
Traverse Adjustment

The mathematical distribution of a traverse's misclosure among its measured courses, using methods such as compass rule or least squares, to produce coordinates consistent with the control.

Related: Closure, Least Squares Adjustment
Least Squares Adjustment

A statistical method that estimates coordinates by minimizing the sum of squared residuals, allowing weighted observations and providing measures of uncertainty for the adjusted positions.

Related: Traverse Adjustment, Residual
Residual

The difference between an observed value and its adjusted or computed value; residuals are used to evaluate the quality of a survey adjustment and detect blunders or outliers.

Related: Least Squares Adjustment, Traverse Adjustment
State Plane Coordinate System

A system of projected coordinates established for each state, using defined projections and zones, to provide a common reference for survey positions within a state or region.

Related: Map Projection, Grid Factor, Datum
Grid Factor

The ratio used to convert a measured ground distance to its corresponding distance on the state plane projection, accounting for scale distortion at the survey location.

Related: State Plane Coordinate System, Map Projection
Map Projection

A mathematical transformation that represents the curved surface of the earth on a flat map, necessarily introducing distortion in distance, area, shape, or direction.

Related: State Plane Coordinate System, Grid Factor
Datum

A reference surface or set of parameters, such as a horizontal or vertical datum, to which coordinates and elevations are tied so measurements from different surveys can be compared.

Related: State Plane Coordinate System, Geoid
Geoid

The equipotential surface of the earth's gravity field that approximates mean sea level, used as the reference for orthometric heights and related vertical datums.

Related: Datum, Orthometric Height
Orthometric Height

The elevation of a point above the geoid, measured along the plumb line; the height commonly reported as elevation in surveying and mapping.

Related: Geoid, Datum
GNSS

Global Navigation Satellite System, a family of satellite positioning systems including GPS, GLONASS, Galileo, and BeiDou, used to determine positions by ranging signals from satellites.

Related: RTK, Baseline, Datum
RTK

Real-Time Kinematic positioning, a GNSS technique using carrier-phase measurements and a correction link from a base station to achieve centimeter-level positions in the field in real time.

Related: GNSS, Baseline
Baseline

The measured vector between two GNSS receivers or the line between survey control points, used in network adjustment and in establishing coordinates and orientation.

Related: GNSS, RTK, Traverse Adjustment
Total Station

An electronic surveying instrument combining an electronic theodolite with a distance meter, used to measure horizontal and vertical angles and slope distances to targets.

Related: Traverse Adjustment, Closure
ALTA/NSPS Survey

A survey prepared according to the ALTA/NSPS minimum standard detail requirements, commonly used in real estate transactions and expanded by optional Table A items agreed by the parties.

Related: Plat, Easement by Prescription
Certificate of Survey

A signed and sealed document prepared by a licensed surveyor describing the results of a survey, including the boundary, monuments, and any discrepancies found.

Related: Plat, Professional Seal
Professional Seal

The stamp or seal of a licensed land surveyor applied to survey documents to certify that the work was performed by or under the responsible charge of the licensee.

Related: Certificate of Survey, Responsible Charge
Responsible Charge

The direct control and personal supervision of surveying work by a licensed surveyor who is accountable for its accuracy, completeness, and compliance with standards.

Related: Professional Seal, Conflict of Interest
Conflict of Interest

A situation in which a surveyor's personal, financial, or other interests could improperly influence professional judgment, requiring disclosure or withdrawal from the engagement.

Related: Responsible Charge, Standard of Care
Standard of Care

The degree of care, skill, and diligence that a reasonably prudent surveyor would exercise under similar circumstances, used to judge professional negligence and competence.

Related: Responsible Charge, Conflict of Interest