An imaginary line running north and south and crossing a base line at an initial point, used by surveyors for reference in locating and describing land under the Public Land Survey System.
A longitudinal basis for mapping grid systems. One group of commonly referenced principal meridians are part of the U.S. PLSS, although such north-south trending lines as marked on the ground with monuments do not exactly follow a line of constant longitude. Wisconsin uses the 4th principal meridian. See Also: U.S. Public Land Survey System
A north-south running line that establishes the Public Land Survey. Townships Range East or West of a Principal Meridian.
A meridian line running through an arbitrary point chosen as a starting point for all sectionalized land within a given area.
One of 35 north and south survey lines established as part of the Public Land Survey System (also called rectangular and government survey).
The main imaginary line running north and south and crossing a base line at a definate point, used by surveyors for reference in location and describing land under the rectangular (government) survey system of legal description. ( See base line , government survey system , legal description , meridian
One of the prime meridians used in the government rectangular survey method of land description to locate range lines.
Principal line running north and south in the government rectangular survey method. Other meridians, each 24 miles apart, are surveyed from the principal meridian.
A meridian is an imaginary line on the Earth's surface from the North Pole to the South Pole that connects all locations with a given longitude. Each is half of a great circle on the Earth's surface.
