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| he last 20,000 years with the eruption of cinder cones, basalt flows and minor trachyte ejecta. Renewed volcanism could block local streams with lava flows, disrupt air traffic with volcanic ash and produce floods or lahars from melting glacial ice. Indigenous peoples have lived adjacent to Mount Edziza for thousands of years. It is a sacred mountain to the Tahltan people, who historically used volcanic glass from it to make tools and weaponry. Mineral exploration just southeast of Mount Edziza had commenced by the 1950s where gold, silver and other metals were discovered. This mineral exploration was conducted by several mining companies into the early 1990s. Mount Edziza and the surrounding area were made into a large provincial park in the early 1970s to preserve the volcanic landscape. The mountain and provincial park can only be accessed by aircraft or by a network of horse trails from surrounding roads. Name and etymology The mountain was labelled Edziza Peak on Geological Survey of Canada maps as early as 1926. This name for the mountain was adopted by the Geographical Names Board of Canada on September 24, 1945, as identified on the 1926 Geological Survey of Canada map sheet 309A. Edziza Mountain appeared in the 1930 BC Gazetteer, in which the name was erroneously spelled Edzia. On December 3, 1974, the form of name was changed from Edziza Peak to Mount Edziza in accordance with a 1927 British Columbia Land Surveyors report, two world aeronautical charts published in 1950, and three British Columbia maps published in 1931, 1933 and 1943. The form of the name w |