Court Cases
This land mark court case helped pave the way for what we know as the "dignity of calls".
What is Stafford v. King, 30 Tex. 257 (1867)?
The different between the ellipsoid height and the orthometric height.
What is the geoid separation?
The two types of law that govern Texas land law.
What is Spanish Civil Law and English Common Law?
A Texas league of land is this many varas square.
What is 5000 varas square?
______________ is statutorily empowered to regulate the practice of engineering and land surveying in Texas.
What is the Texas Board of Professional Engineers and Land Surveyors?
The projection within the NAD83 Texas state plane zones.
What is the Lambert Conformal Conic projection?
The year Texas adopted English Common Law
What is 1840?
A Texas labor of land is this many varas square.
What is 1000 varas square?
The number of original land districts in Texas.
What is 35?
What is an ellipsoid?
Generally referenced as the first call from the established dignity of calls for Texas.
What is a natural monument?
The amount of parts per million a US Survey Foot is longer than an International Foot.
What is 2 parts per million?
___________ uses a fixed base station to send corrections to a moving receiver. The receiver compares a code from the satellite to a code it generates internally, and then calculates any measurement errors.
What is real-time kinematics (RTK)?
A coordinate grid system that divides the Earth into 60 zones, each 6 degrees wide in longitude.
a legal doctrine that states that the meaning of a written document is determined by its textual content alone. The rule applies to documents such as contracts, wills, and deeds.
What is the 4 corners rule?
A surveying technique that adjusts a traverse's closure error by distributing the coordinate error in proportion to the length of the traverse lines
What is the compass rule adjustment?
OR
What is the Bowditch Rule?
_______________ is a multiplication factor used to convert between grid and ground distances. It's calculated by multiplying the grid scale factor by the elevation factor.
What is the combined scale factor?
In this Texas court case, the Texas Supreme Court ruled that when a land patent description conflicts with the actual survey markers on the ground, the physical boundaries marked by the surveyor will take precedence over the written description in the patent, essentially prioritizing the "calls" of course and distance over the landmarks mentioned in the patent document; this decision established a key principle in Texas land law regarding interpreting conflicting land descriptions.
What is Urquhart v. Burleson, 6 Tex. 502 (1851)?
defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model and World Magnetic Model.
What is WGS84?
or
What is World Geodetic System of 1984?
This is the highest order of the dignity of calls, generally not referenced in the typical list of 5 calls. Courts would hold this over natural monumentation in certain instances.
What is the intent of the parties?
or
What is the intent?
This is the state of Texas' virgin land, which was a primary source of revenue in the early days of the state.
What is the unappropriated public domain?