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| Tera | |
|---|---|
 | |
 | |
| Location | |
| Country | Spain |
| Region | Castile and Leon |
| Physical characteristics | |
| Mouth | |
• location | River Esla, Bretocino |
• coordinates | 41°53′57″N5°44′22″W / 41.8992°N 5.7395°W |
| Length | 139.82 km (86.88 mi) |
| Basin size | 2,412 km2 (931 sq mi) |
The Tera is a river in the north of Spain, a tributary of the River Esla.
It is of ecological importance, being the home of 24 species of the European Union Nature Directives. Riberas del Río Tera y afluentes was designated a Special Area of Conservation in 2015. [1]
