NZ Topo - object class river_poly

This page describe the river_poly object class used to represent objects in the NZTopo topographic database.


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.

Topo50 description

River_poly is used to capture a river where it is wide enough to be captured at 1:50,000 as an area feature

Topo250 description

Only those significant by their size or location are held in the Topo250 data and shown on the Topo250 printed maps; these are a generalised subset of those shown on the Topo50 series

Representation specification

Representation specification showing river_poly

Click to enlarge image

See also: floodgate_pnt river_cl waterfall_poly rapid_poly

Class attributes

Attribute Value
Object class river_poly
Entity class WATERCOURSE
Additional entity class Not applicable
Object inheritance simple_area
Entity source US Standard Entity
Map series Topo250 Topo50 Topo500
LSLIFF object class 335

Object attributes

This object class does not have attributes.

Change log

Feature version Revised Description
4 2012-08-28 Updated map image and aerial view; added representation specification and example feature photographs
3 2012-08-28 Added scale-specific definitions
2 2008-04-10 Removed reference to seed and void objects
1 1999-03-01 intial status