Arrowhead Brand 100% Mountain Spring Water has been a local favorite along the West Coast for generations. It derives its name from the natural arrowhead formation that points to the water’s original source in the San Bernardino Mountains. Sourced from carefully selected mountain springs west of the Rockies, Arrowhead Mountain Spring Water contains naturally occurring minerals for a crisp, refreshing taste. So when you’re looking for a trusted source of hydration for any occasion, choose Arrowhead.