Large fracture in rock where movement has taken place

A defined area on land or water (including any buildings, installations and equipments) intended to be used either wholly or in part for the arrival, departure and surface movement of aircraft.

A complex where signals for television broadcasting is managed.

Boundary markers established to demarcate the boundary between states

Control points established at the outer most limit of a country for the purpose of defining its maritime boundaries

Control points established using gravimeter and tied to IGNS

Points with height values

Survey stations established through trigonometric observation in the triangulation network

Control points established by astronomical observations

Control points established by survey techniques other than GPS