Math & Measurement

    Government Survey System

    Also called the rectangular survey system, a method that describes land using townships and sections measured from principal meridians and base lines.

    The government survey system, or rectangular survey system, describes land by reference to a grid of principal meridians, which run north and south, and base lines, which run east and west. The grid divides land into townships, and each township into 36 sections.

    A section is one mile square and contains 640 acres. Fractional parts of a section, such as the NW quarter, are used to pinpoint smaller parcels.

    On the exam

    Anchor numbers: 36 sections per township, 640 acres per section, 43,560 square feet per acre.

    Exam trap

    Principal meridians run north-south and base lines run east-west. Do not reverse them.

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    Legal Descriptions (5% of the exam)

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    This definition is Florida real estate exam-prep education, not legal, tax, or professional advice. Verify current rules against the official source before relying on them for a real transaction. Back to the full glossary.