Mining engineering is a field of engineering that involves the extraction of valuable minerals from the earth. This can include the planning and design of mines, as well as the operation and management of mining sites. Mining engineers work to ensure the safe and efficient extraction of minerals while minimizing environmental impact and maximizing economic returns. They may also be involved in the rehabilitation of mining sites after extraction is complete. Key areas of focus in mining engineering include geotechnical engineering, mineral processing, and mine planning and design.