Fundamental GDC

General

This category includes monumented control points such as geodetic control station, benchmarks, tide station, standard traverse marks, ground control point, gravity station and remote sensing imagery such as aerial photography and satellite imagery.

  • G2G ZA0010

    Control points established by GPS survey

  • G2G ZA0020

    Control points established by survey techniques other than GPS

  • G2G ZA0030

    Control points established by astronomical observations

  • G2G ZA0040

    Survey stations established through trigonometric observation in the triangulation network

  • G2G ZA0050

    Points with height values

  • G2G ZA0060

    Control points established using gravimeter and tied to IGNS

  • G2G ZA0070

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

  • G2G ZA0090

    Boundary markers established to demarcate the boundary between states

  • G2G ZB0010

    A point to label a settlement such as city, town, pekan or village

  • G2G ZB0020

    A point to label a geographical feature such as sea, straits, gulf, river mouth, beach, cape, hill, mountain, abandoned village, harbour/port, swamp, pit, farm and country name

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