The El Bocal Oak is an impressive tree declared a Natural Monument by the Government of Navarre. This majestic oak, located in the municipality of Fontellas, near Tudela, is over 500 years old and reaches a height of over 30 meters. It was likely planted during the initial construction of the Imperial Canal of Aragon.
It is located in the area of "El Vivero" in El Bocal (Fontellas), the point of origin of the Imperial Canal of Aragon. Its total height is almost 27 meters. It was declared a Natural Monument in 1991.