Every winter, Michoacán plays host to thousands of North America’s monarch butterflies. Residents and tourists alike also enjoy Michoacán’s festive Day of the Dead celebration and visits to the Paricutin volcano, which became active until 1943. The primary industries in Michoacán are mining, farm products and tourism. Iron ore deposits are mined throughout the state, and facilities such as the one at Lázaro Cádenas process large quantities of iron, zinc, and steel. Angangueo and Churumuco are centers for gold mining operations, and Coalcomán and Tingambato produce substantial amounts of copper.