A structure used for the storage of fluids Data Dictionary for tank_pnt: https://docs.topo.linz.govt.nz/data-dictionary/tdd-class-tank_pnt.html This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

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 This layer is a component of the Topo250 map series. The Topo250 map series provides topographic mapping for the New Zealand mainland and Chatham Islands, at 1:250,000 scale. Further information on Topo250: http://www.linz.govt.nz/topography/topo-maps/topo250

Ice stream; a current of ice in an ice sheet or ice cap that flows more rapidly than the surrounding ice,usually flowing to the ocean or to an ice shelf and not constrained by exposed rock. Data Dictionary for ice_stream_cl: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-ice_stream_cl This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

A vertical pole serving as an antenna or antenna support. Data Dictionary for mast_pnt: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-mast_pnt This layer is a component of the Topo250 map series. The Topo250 map series provides topographic mapping for the New Zealand mainland and Chatham Islands, at 1:250,000 scale. Further information on Topo250: http://www.linz.govt.nz/topography/topo-maps/topo250

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: https://docs.topo.linz.govt.nz/data-dictionary/tdd-class-linz_map_sheet.html This layer is a component of the Topo250 map series. The Topo250 map series provides topographic mapping for the New Zealand mainland and Chatham Islands, at 1:250,000 scale. Further information on Topo250: http://www.linz.govt.nz/topography/topo-maps/topo250

Crushed rock, shells etc larger than 2mm in size Data Dictionary for shingle_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-shingle_poly This layer is a component of the Topo250 map series. The Topo250 map series provides topographic mapping for the New Zealand mainland and Chatham Islands, at 1:250,000 scale. Further information on Topo250: http://www.linz.govt.nz/topography/topo-maps/topo250

A crack or fissure in a glacier resulting from stress; may be 20m wide and 45 metres deep and several hundred metres long. Data Dictionary for crevasse_cl: https://docs.topo.linz.govt.nz/data-dictionary/tdd-class-crevasse_cl.html This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

The line forming the boundary between the land and sea, defined by mean high water. Data Dictionary for coastline: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-coastline This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

The Topo250 map series provides topographic mapping for the New Zealand mainland, the Chatham Islands at 1:250,000 scale. Along with the paper-based Topo250 map series, digital images of the maps are also publicly available. Georeferenced raster digital images are provided at a resolution of 300 DPI. Georeferencing allows adjacent maps to be accurately and automatically aligned within GIS systems. For more information, and a description of the georeferencing keys: http://www.linz.govt.nz/topography/topo-maps/topo250/digital-images

A naturally formed, subterranean open area or chamber. Data Dictionary for cave_pnt: https://docs.topo.linz.govt.nz/data-dictionary/tdd-class-cave_pnt.html This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.