The Miles Canyon Basalts is a cluster of basaltic lava flows and cones in south-central Yukon. Basalt (bəˈsɔːlt ˈbeisɔːlt ˈbæsɔːlt is a common Extrusive Volcanic rock. Yukon (ˈjuːkɒn is the westernmost and smallest of Canada's three territories. The lava flows are in the Alligator Lake volcanic field close to Whitehorse and were thought to be Pleistocene age. Lava is molten rock expelled by a Volcano during an eruption When first expelled from a volcanic vent it is a Liquid at Temperatures Alligator Lake is a group of Basaltic cones and Lava flows in south central Yukon. A volcanic field is a spot of the Earth 's crust that is prone to localized Volcanic activity Whitehorse (ˈʍaɪthɔrs ( 2006 population 20461 CA population 22898 (formerly White Horse until 1957 - 03-21) is the The Pleistocene ('plaɪstəsin is the epoch from 18 million to 10000 years BP covering the world's recent period