Traditionally the Pomo were a comparatively wealthy people, well supplied with food and other natural resources. Fish, waterfowl, deer, acorns, bulb plants, seeds, and other wild foods were plentiful. Northeastern Pomo settlements held a lucrative salt deposit, and southeastern settlements had magnesite, a substance that was combined with ground shells and made into the beads that were used as standard currency in north-central California. Pomo basketry, considered by some to be the finest in California, was exceptionally well twined and intricately ornamented, using various woody materials, beads, and coloured feathers. Pomo housing varied with the locale: coastal residents constructed dwellings of heavy timber and bark, and inland peoples built various types of dwellings out of such materials as poles, brush, grass, and tule mats. Traditional Pomo religion involved the Kuksu cult, a set of beliefs and practices involving private ceremonies, esoteric dances and rituals, and impersonations of spirits. There were also ceremonies for such things as ghosts, coyotes, and thunder.