[1] Aguilar was the commander of the ship Tres Reyes in an expedition led by Sebastián Vizcaíno.
[2] Vizcaíno set out from Mexico in 1602 in search of usable harbors and the mythical city of Quivira.
While exploring along the northern California coast, a storm separated Vizcaíno and Aguilar's ships.
Aguilar is thought to have sighted and named Cape Blanco, and he may have sailed as far as Coos Bay.
[2] No deliberate exploration of the Northwest Coast occurred again until some 150 years after Aguilar, though accidental sightings and shipwrecks were possible.