| Altân Tepe mine | |
| Pushpin Map: | Romania |
| Coordinates: | [1] |
| Place: | Stejaru |
| Subdivision Type: | Commune |
| State/Province: | Tulcea County |
| Country: | Romania |
| Owner: | Minbucovina |
| Products: | Copper |
| Opening Year: | 1898 |
| Closing Year: | 2003 |
The Altân Tepe mine (from Turkish "altın tepe", "golden hill") was a large mine in the east of Romania in Tulcea County, 63 km southwest of Tulcea and 215 km north-east of the capital, Bucharest. Altân Tepe represents the third largest copper reserve in Romania having estimated reserves of 200 million tonnes of ore grading 0.4% copper. After operation for 105 years, it was closed and conserved in 2003 due to nonprofitability. It had also problems with water contamination.[2]