The Persian Zoroastrian Organization (PZO) is a religious and cultural nonprofit organization based upon the teachings of Zoroaster, the good thought, the good word, and the good deed. It was founded in 1981 by a group of enthusiastic volunteers, and with the great vision and donation of Rostam and Morvarid Guive a beautiful temple was made possible on Mount Hamilton, east of San Jose in northern California.

Currently this property is used among over 500 Zoroastrian families to conduct religious ceremonies, national celebration, and cultural gatherings.