control station

Point on the ground whose position (horizontal or vertical) is known and can be used as a base for additional survey work.

coordinates

Linear and (or) angular quantities that designate the position of a point in relation to a given reference frame.

coordinates, origin of

Points in a system of coordinates which serves as a zero point in computing the system’s elements or in prescribing its use.

culture

Features constructed by man that are under, on, or above the ground which are delineated on a map. These include roads, trails, buildings, canals, sewer systems, and boundary lines. In a broad sense, the term also applies to all names, other identification, and legends on a map.

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