Description: This provides a polygon coastline and islands layer which is based on the Topo500 products. It is a combination of the following layers: - [NZ Coastlines (Topo, 1:500k)](http://data.linz.govt.nz/layer/204-nz-coastlines-topo-1500k/) - [NZ Island Polygons (Topo, 1:500k)](http://data.linz.govt.nz/#/layer/211-nz-island-polygons-topo-1500k/) Islands from the NZ Island Polygons layer that lie within the NZ Coastline area (i.e. islands in lakes, rivers and estuaries) have been removed. The GIS workflow to create the layer is: 1. NZ Coastlines were converted from a polyline to a polygon using a polyline to polygon tool. 2. The resulting coastal polygon was then used as an input into an erase tool and run against the NZ Island Polygon layer to remove all islands lying within the NZ Mainland and Stewart Island. For more detailed description of each layer refer to the layer urls above.
Copyright Text: LINZ - Land Information New Zealand