SPECIAL AREA OF CONSERVATION (SAC)
The Protected Biotope River Leitzaran consists of the natural waterway and 5-metre wide easement area on each bank of the river as defined in Water Act 29/1985 of 2 August. It covers the area from the Plazaola dam on the Navarre-Gipuzkoa boundary to the dam of the Otita fish farm and takes in the tributaries between these two points and the Maloko and Ubaran tributaries as far as the abandoned railway line.
Decree 416/1995of 20 October 1995 declaring the Protected Biotope "Leitzaran River". This protection status is provided for in Basque Nature Conservation Act 16/1994 and is equivalent to a nature reserve. It covers the entire surface area of the Leitzaran SAC.