Adac was an important Cochimi settlement (located in the central desert of the peninsula) with several springs. 

This place had already been discovered by the missionary Jorge Regz in 1758. Four years later, the Jesuit father Wenceslao Link founded a mission there. 

After the expulsion of the Jesuits in 1768, the Franciscan Fermín Francisco Lasuén took charge of it until 1771. This mission operated until 1818 when it was abandoned due to a lack of population. 

Significant remains of the mission still exist, such as a cemetery, a lime burning kiln, as well as the main building comprising the church, mission quarters, a kitchen, and a mill. The original adobe construction also remains.