Shield volcano are cave-like volcanic straights formed by the hardening of overlaying lava. These structures help further the propagation of lava, as the walls of the tube insulates the lava within. Lava tubes can account for a large portion of shield volcano activity; for example, an estimated 58% of the lava forming Kīlauea comes from lava tubes. In some shield volcano eruptions, basaltic lava pours out of a long fissure instead of a central vent, and shrouds the countryside with a long band of volcanic material in the form of a broad plateau. Plateaus of this type exist in Iceland, Washington, Oregon,
Under the Volcano Festival Under the Volcano Festival Under The Volcano Festival Of Art & Social Change was an activist, grassroots gathering held at Whey-Ah-Wichen Cates Park on the traditional territory of the Tsleil-Waututh Nation in North Vancouver, BC in August. "Under the Volcano" was Canada's largest political arts festival and was 100% volunteer produced. The festival took its name from the well-known book of the same name by Malcolm Lowry, who squatted in Cates Park in the 1940s. The festival was started in 1990 by Vancouver social activist and artist Irwin Oostindie, and was produced by a dedicated group of volunteers until its