| |
| Series | Geological Map of Japan 1:200,000 |
| Map sheet number | NK-54-19･20 |
| Map titl | IWANAI |
| Authors | TSUSHIMA Konroku |
| Publication year | 1968 |
| Publisher | Geological Survey of Japan |
| Price | ----- |
| Prefectures covered | HOKKAIDO |
|
| |
| Series | Geological Map of Japan 1:200,000 |
| Map sheet number | NK-54-19･20 |
| Map titl | IWANAI |
| Authors | TSUSHIMA Konroku |
| Publication year | 1968 |
| Publisher | Geological Survey of Japan |
| Price | ----- |
| Prefectures covered | HOKKAIDO |