A331 highway (Russia)
The A331 Highway, also known as the Vilyuy Highway, is a highway in Russia connecting Yakutsk to Mirny, the highway is 1,166 km, the first half of the highway from Yakutsk to Vilyuysk is paved with a few short unpaved sections in between.The next half of the highway is not paved.
Major junctions
| Name of town/road | Mi | Km |
| Sergelyakhskoyle Shosse | 0 | 0 |
| Berdigestyakh | 109 | 177 |
| Vilyuysk | 353 | 569 |
| Verkhnevilyuysk | 403 | 650 |
| Zharkhan | 464 | 748 |
| Suntar | 590 | 950 |
| 98K-015 | 715 | 1151 |
| Mirny | 724 | 1166 |