Mills are facilities that use machinery to process raw materials into finished products. They can be powered by various energy sources, including water, wind, or fossil fuels. Common types of mills include grist mills, which grind grain into flour, and sawmills, which cut timber into lumber. Historically, mills played a crucial role in local economies by providing essential goods. They often served as community hubs where people gathered, and their operations were vital for agriculture and construction. Today, modern mills continue to operate, utilizing advanced technology to improve efficiency and production quality.