An imaginary line that connects points of equal height value eg the elevation of the land surface above or below a vertical datum, in this case of LINZ topographic mapping, this is Mean Sea Level. Data Dictionary for contour: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-contour Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

Polygon for each Topo50 map sheet holding extents of each sheet, it's sheet code, name, edition, and revision statement. This is the same information that is printed on each Topo50 map Data Dictionary for linz_map_sheet: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-linz_map_sheet Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

Coastal rocks; rocks between high and low tide Data Dictionary for rock_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-rock_poly Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

A natural, flowing body of water emptying into an ocean, lake or other body of water and usually fed along it's course by converging tributaries. Data Dictionary for river_cl: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-river_cl Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

A tract of land covered by vegetation less that 3m high Data Dictionary for scrub_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-scrub_poly Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

Descriptive text; object used to hold text. Data Dictionary for descriptive_text: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-descriptive_text Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

Any standing body of fresh inland water. Data Dictionary for lake_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-lake_poly Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

Area of dry or relatively dry land surrounded by water or low wetland Data Dictionary for island_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-island_poly Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

A high, steep or overhanging face or rock. Can be rock. Data Dictionary for cliff_edge: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-cliff_edge Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50

Geographic name holds the proper noun of certain objects within the Topo databases. Geographic_name does not apply to roads, railway lines, or descriptive text - eg 'Brunner Mine' would be a Geographic_name but 'mine disused' is held in the descriptive_text feature Data Dictionary for geographic_name: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-geographic_name Although captured and presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series. Further information on Topo50: http://www.linz.govt.nz/topography/topo-maps/topo50