The Cultural Park of the Martín river lies in the south of the province of Zaragoza , and in the northeast of the province of Teruel , the province to which it belongs. These provinces lie in the Independent Community of Aragon, along the Aragonese part of the Iberian cordillera and the middle part of the Martín river. The Park includes the villages of Montalbán and its hamlet, Peñarroyas, Torre de las Arcas, Obón, Alcaine, Alacón, Oliete, Ariño and Albalate del Arzobispo.
The landscape is characterized by steep canyons crossing the Iberian mountain ranges; a result of the southwest-northwest flow of the river and its tributaries. In the middle of the Martín river, the mountains are shaped in such a way-stretching from the southeast to the northwest-that we can observe the tectonic structure of the Iberian chain.
At the southern border of the Park is the Muela calcareous massif (Montalbán) (1,295
m. high). At its foot intersect several watercourses of the Martín river, which have originated in the San Just mountain range spurs. In Peñarroyas, the Martín river then breaks through the rock belt of Buntsandstein red sandstones (lower Triassic), and gives shape to the reddish relieves, which transversely cut the Park from Hoz de la Vieja to Torre de las Arcas.
In the center of the Park, the Martín river runs across the Muelas calcareous massif, within the municipalities of Obón and Torre de las Arcas. It continues across the Benicozar and Guardias mountains in Alcaine, and the Moros and Sancho Abarca ranges between Alcaine and Oliete. The Moros and Sancho Abarca ranges are crossed by two of the main tributaries, the Radón and Seco rivers. In the pass between Alcaine and Oliete, the Cueva Foradada reservoir was built. The reservoir controls the water flow, which is used for irrigation.
To the north it is the Arcos mountain range which makes the Martin's flow into the Ebro river difficult. Along its spurs, the Muela and Mortero ravines (originating in Alacón) and the Escuriza river (near Ariño) join the Martín river, opening a deep breach in the mountain range, known as los Estrechos (the Straits). This breach can be found just before getting to Albalate del Arzobispo, the northeastern border of the Cultural Park of the Martín river.