Laguna del Maule (volcano) about fourteen shield volcanoes and stratovolcanoes that have been degraded by glaciation. The Laguna del Maule volcanic field covers a surface area of and contains cones, lava domes, lava flows, and shield volcanoes. There are 130 volcanic vents at Laguna del Maule. The lake is surrounded by 36 silicic coulees and lava domes. Over of the field is covered by these rocks, and volcanic ash and pumice produced by the eruptions has been found in Argentina. Presently some summits around Laguna del Maule reach altitudes of . The volcanic field lies at an average height of . Among the various
Coal mining in the Black Country was tipped off, thus forming the characteristic 'finger' spoil heaps of most small Black country pits. The rocky waste and clay was known as 'tocky'. The machine also on the rails behind the spoil wagon is an early electrical coal cutter the arm extending from the front moved through an arc and cut a corresponding arc in the coal seam which then allowed the coal to drop down in big lumps. One the shaft was established the sinking engine would either be dismantled and sold on or kept to use in an emergency. Coal mining in the Black Country Coal