Modern Towns (50) Modern Mines (8) Clifton, Arizona History Click on an image to get more details or a direct link. Open-pit copper mine at Clifton The mine has swallowed the town of Morenci completely. Open-pit copper mine at Clifton Open-pit copper mine at Clifton Open-pit copper mine at Clifton Open-pit copper mine at Clifton Open-pit copper mine at Clifton Open-pit copper mine at Clifton Open-pit copper mine at Clifton