| Cerro de Oro Dam | |
|---|---|
| Location | Oaxaca, Mexico |
| Coordinates | 17°59′55″N 96°15′47″W / 17.99861°N 96.26306°W |
| Opening date | May 1989 |
| Dam and spillways | |
| Impounds | Santo Domingo River |
| Height | 75.6 m |
| Reservoir | |
| Creates | Cerro de Oro Lake |
| Total capacity | 13.380 million m3 (with Miguel Alemán Dam) |
| Surface area | 22,000 hectares |
The Cerro de Oro Dam (English: Gold Hill Dam), also called the Miguel de la Madrid Hurtado Dam, is on the Santo Domingo River in the San Juan Bautista Tuxtepec municipality of the Papaloapan Region of Oaxaca state in southern Mexico. The dam operates in conjunction with the Miguel Alemán Dam, located on the Tonto River to control floods in the Papaloapan basin in Veracruz state. Construction began in 1973 and the dam was completed in May 1989.[1] About 26,000 people were displaced by the project. Water quality in the reservoir is poor and deteriorating, affecting fish catches.