Coast redwood (Sequoia sempervirens) forest is found within the Seashore primarily along Bolinas Ridge with a few small pockets west of Olema Valley (see Vegetation Map). Coast redwood, a California endemic, is one of the world's tallest trees. This forest type is found in a narrow strip 450 miles long and 5 to 35 miles wide along the California coast from Del Norte county (and a few isolated stands in extreme southern Oregon) in the north to Monterey county in the south. This species is thought to be fog dependent and intolerant of sea spray. Coast redwood forest occupies approximately 3,000 acres of Point Reyes.