Plane table

A plane table (plain table prior to 1830)^[1] is a device used in surveying, site mapping, exploration mapping, coastal navigation mapping, and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps. The early use of the name plain table reflected its simplicity and plainness rather than its flatness.^[2] "Plane" refers to the table being both flat and levelled (horizontal).

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