The Trona Pinnacles are an unusual geological feature in the California Desert National Conservation Area. The unusual landscape consists of more than 500 tufa spires, some as high as, rising from the bed of the Searles Lake basin. The pinnacles vary in size and shape from short and squat to tall and thin, and are composed primarily of calcium carbonate. They now sit isolated and slowly crumbling away near the south end of the valley, surrounded by many square miles of flat, dried mud and with stark mountain ranges at either side.
Check out this outside link for more about this location: https://www.blm.gov/visit/trona-pinnacles