A military bunker located near Trincheras, Spain, in the Zaragoza province. The site is situated in a region with a history of military fortifications, particularly from the Spanish Civil War era. Trincheras, meaning 'trenches' in Spanish, suggests the area may have been part of defensive earthworks or trench systems.
The bunker's exact function and construction date remain unclear without further historical documentation, but it likely served as a defensive position given its name and location in a historically strategic area of Aragon.