Tera River

Tera
Location
Country	Spain
Region	Castile and Leon
Physical characteristics
Mouth
• location	River Esla, Bretocino
• coordinates	41°53′57″N 5°44′22″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.