| Year | 2012 |
| Date | 14-Dec |
| Volume | 209 |
| Issue | 4,445 |
| Page | 880 |
| Category | General |
| Part | 2 |
| Title | Rio Tinto Copper Mining in Southern Spain |
| Author | Terence Holland |
| Notes | Looks at copper within a Spanish mining context. Lunar landscape, sulphuric acid production, metal production, copper processing, Rio Tinto water, narrow gauge lines, main line to Huelva, to summarise, the mineral railways around the area, the Rio Tinto main line railway, signalling, signal gantries at Naya, 0-6-0 engine from the Baldwin Locomotive Works in the U.S.A. |