The families in this settlement lived in pyramid-shaped housing structures that were supported by a freshwater spring, wetland vegetation and riparian vegetation along the hillsides. The village provided food and water for the
Portolá expedition in 1769 as the crew of the
San Carlos and
San Antonio were dying of scurvy and thirst. Lieut.
Miguel Costansó described being guided by the Kumeyaay to the village as
"they arrived on the banks of a river hemmed in on either bank by a fringe of willows and cottonwoods, very leafy...within a musket-shot from the river they discovered a town or village of the same Indians who were guiding our men. It was composed of various huts of pyramidal shape made of branches and covered with earth....The village was composed of 30 or 40 families. On one side of it there was observed an enclosure made of boughs and trunks of trees. Within this, they explained, they took refuge against attacks from their enemies.” The Spanish referred to the village as Cosoy, a hispanized name of Kosa'aay. ==Spanish Interactions==