Other mountains. In the Encartaciones, western part of Biscay, apart from the heights already listed when outlining its limits, there are the Sasiburu mountain range (459 m.), Eretza Peak (871 m.) and Triano mountains (Pico Mayor, 747 m.). In the enclave of Orduña the mountains of Solayera (1,093 m.), Iturrigorri (1,064 m.) and Bedarbide (1,041 m.), all belonging to the Sierra Salvada that separates it from Burgos. The buttresses of the two main mountain ranges originate other elevations of relative importance: Pagasarri (585 m.), Sollube (375 m.), Atxarre (347 m.), Jata (592 m.).

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