The A331 Highway, also known as the Vilyuy Highway, is a highway in Russia connecting Yakutsk to Mirny, the highway is 1,166 km (724 mi), 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(Vilyuysk to Mirny) is not paved.

[2][unreliable source?]