Not all of the Ruapehu District is the same. Some activities are better suited to certain areas. To address these differences, Council has divided the District and, in some cases the towns, into Zones (eg, Residential, Industrial, Rural, etc).
The District Plan Maps enable you to establish the zoning of a site and any specific features (eg, Heritage Buildings or Outstanding Landscapes).
For more detail see the District Plan web page which has information on policies and rules and other regulations.