| NZ Cave Points (Topo, 1:250k) | National Topographic Office | Land Information New Zealand | Creative Commons Attribution 4.0 International | Layer | Vector | 7243 | 324 | ||
| NZ Tunnel Centrelines (Topo, 1:500k) | National Topographic Office | Land Information New Zealand | Creative Commons Attribution 4.0 International | Layer | Vector | 5715 | 153 |