These maps are created using data from Land Information New Zealand and ESRI. The pdf files are geo-referenced so if you have an app on your device that understands georeferencing you can use these to display your location on the map. I use Avenza Maps.
Access points for Google maps : https://goo.gl/maps/kMesLUUxsLS2
The nearest river out of our immediate area.
Included because I made this map for a trip last year.