Principal Meridian
The main imaginary line running north and south and crossing a base line at a definite point, used by surveyors for reference in locating and describing land under the rectangular (government) survey system of legal description.
Real Estate Glossary
The main imaginary line running north and south and crossing a base line at a definite point, used by surveyors for reference in locating and describing land under the rectangular (government) survey system of legal description.