Hernando de Alarcón

Hernando de Alarcón (born 1500) was a Spanish explorer and navigator of the 16th century, noted for having led a 1540 expedition to the Colorado River Delta, during which he became one of the first Europeans to ascend the Colorado River from its mouth and became the first European to see Alta California.

Little is known about Alarcón's life outside of his exploits in New Spain. He was probably born in the town of Trujillo, in present-day Extremadura, Spain, in the first years of the 16th century and travelled to the Spanish colonies in the Americas as a young man. Provided by Wikipedia