Hokkaidō 42 map courtesy of Google Maps. (Click the map for driving directions)
| Length |
| 41 km |
| Route name |
| Yakumo Kitahiyama line |
| Western terminus |
| Setana-chō, Kitahiyama-ku, JCT Route 229 |
| Eastern terminus |
| Yakumo-chō, JCT Route 5 |
| Municipalities traversed (W to E) |
| Kitahiyama-chō Yakumo-chō |
Road intersections |
| Route 229 route 263 Route 277 route 1029 (duplex to east terminus?) route 202 Route 5 |
| Train line intersections |
| JR Hakodate line (near Yakumo Station) |
| Notes |
| Commissioned with route 42 designation on 1 October 1994 |