quickly. From May to September, the mountain areas are mostly warm and dry with temperatures reaching 80–90 °F in mid-summer, but the weather is still highly variable, with some days of fog and light rain. Humboldt County Much of the land in the area is owned by the federal government, and in 1970, more than were designated the King Range National Conservation Area. Because of the rugged and remote location, the small towns of Shelter Cove, Whitethorn and Petrolia are popular with those looking for quiet respite. The area is known for its black sand beaches, which get their color from dark colored sandstone called greywacke and an older compressed shale produced by tectonic activity of one continental and two oceanic plates meeting just offshore. Mendocino County Early European settlers of this area began harvesting bark of the tanoak tree for tanning hides into leather. Bark collectors formed the small community of Kenny around springs at the headwaters of the north fork of Usal Creek. A wharf was built at Bear Harbor in 1884 for loading bark onto ships. The Bear Harbor and Eel River Railroad incorporated in 1896 to connect the wharf to a sawmill being built on the South Fork Eel River at Andersonia, California. The location of the railroad shops was named Moody for the proprietor (Louis Alton Moody) of a nearby hotel and saloon. The community of Andersonia, Anderson Gulch, and the Anderson Cliffs of the Lost Coast are named for sawmill owner Henry Neff Anderson, who was killed in a construction accident in 1905. Sawmill and railroad operation languished after Anderson's death, and the facilities were dismantled in 1921. Usal Redwood Company built a sawmill and wharf at the mouth of Usal Creek in 1889. The company town of Usal was built around the mill and a railroad for transporting logs extended three miles up Usal Creek. A fire in 1902 destroyed the sawmill, schoolhouse, warehouse, and county bridge over Usal Creek. The railroad was dismantled; but a few structures, including a hotel, survived until destroyed by fire in 1969. Steep terrain and unfavorable coastal mooring conditions delayed timber harvesting of Jackass Creek drainage until internal combustion machinery was available for transport. The company town of Wheeler, California, was built for logging operations from 1948 to 1959. Sinkyone Wilderness State Park began acquisition of Lost Coast property in 1975. Transportation The geology of the Lost