Sewell Mining Town is particularly notable for its contribution to the global spread of large-scale mining technology. Sewell is a company town of great originality. AuthenticitySewell Mining Town is authentic in terms of the ensemble’s forms and designs, materials and substances, uses and functions, and location and setting. In 2006 this corporation created the Fundación Sewell (Sewell Foundation), a non-profit organization devoted specifically to managing, administering, conserving and promoting Sewell Mining Town’s assets as a museum site for the copper mining industry, and to which it provides funding. Sewell Mining Town was declared a National Monument by virtue of Ministry of Education Decree No.