The Vale of Orozko finds surrounded of mountains and it is crossed by two important rivers as they are Arnauri and the Altube that they come to join in the Kantarrana quarter to end finally in the Nervion at a height of the locality of Alava of Areta.
But it is the Massif of the Gorbeia it is the one that awards to the municipality one special character.

Declared Nature reserve for the Basque Government in July, 1994, is the most extensive park of the CAV, with an entire extension of 20.016 hectares.
The Park receives the Biomole protected from Itxina, belonging in his totality to the municipality of Orozko, with a 571 hectares whole.

At present it is the only municipality which consistorial house finds placed in Zubiaur; central and more important town

Patrimony:

CHURCH OF SAN BARTOLOME OF OLARTE
CHURCH OF SANTA MARIA OF ZALOA
CHURCH OF SAN PEDRO OF MURUETA
CHURCH OF ST MARTIN OF ALBIZU
CHURCH ANTIGUA OF SAINT JOHN
CHURCH OF THE ST LAWRENCE OF URIGOITI
CHAPEL OF SAN MIGUEL OF MUGARRAGA
CHAPEL OF SAN YOKEL OF ARBAIZA
CHAPEL OF SAN ROQUE
HOLY CHAPEL CATALINA
CHAPEL OF MARINE SAINT
NATIVITY OF GOIKIRIA

ETHNOGRAPHIC MUSEUM:

The museum remains located in the house - palace legorburu also called house Kareaga, building of stately character of the XVIIIth century, situated in the Biggest Zubiaur square, in the Vale of Orozko. There is next to freeway A-68, to 21 kilometers of Bilbao.

"Orozkoko Museoa" is a building of three plants, each of them destined to reflect a topic: The Historical Patrimony of the Vale of Orozko; the Traditional Life in the Vale; and the Settlers of High Earths of the Gorbeia. This way, this way, it is possible to reconstruct the past of the Vale of Orozko of a clear, lively form and attractive. (ftes. to see links)

Nuclei: Orozko, Zubiaur, Ibarra, Arbaiza, Urigoiti, Bengoetxea, Murueta, Gallartu, St Martin