Ndaxagua (also Ndaxagua cave, Ndaxagua natural tunnel), locally known in Spanish as El Puente Colosal ("Colossal [Natural] Bridge") is a natural cave with double entrance and archaeological site, located in the extreme northern end of the Coixtlahuaca Basin, central-southern Mexico.
In codex depictions, the cave was believed to be the place where Quetzalcoatl descended from heaven.
These murals in the cave depict anthropomorphic figures with protruding beak-like mask.
Another mural shows a deer ready to be sacrificed by a figure holding a blades.
The region belongs to the communities of Tepelmeme Villa de Morelos and Santa María Ixcatlán and is part of the protected semi-desert area of the Tehuacán-Cuicatlán Biosphere Reserve at Juquila River.