Indigenous peoples have lived along the California coast for at least 11,000 years or since 7000 BC. Sites of the Millingstone Horizon date from 7000 to 4500 BC and show evidence of a subsistence system focused on the processing of seeds with "metates" and "manos". During that time, people used bipointed bone objects and line to catch fish and began making beads from shells of the marine olive snail ("Olivella biplicata"). The name Chumash means "bead maker" or "seashell people" being that they originated near the Santa Barbara coast. The Chumash tribes near the coast benefited most with the "close juxtaposition of a variety or marine and terrestrial habitats, intensive upwelling in coastal waters, and intentional burning of the landscape made the Santa Barbara Channel region one of the most resource abundant places on the planet."