Layer Estimates:

Layer: NZ River Centrelines (Topo, 1:500k) (ID:0)
Count: 7894
Extent:

XMin: 1090841.21374989
YMin: 4753216.85820007
XMax: 2085681.87834978
YMax: 6190543.88544989
Spatial Reference: 2193 (2193)