indice ultravioletti a Mad River Slough (Arcata Bay) (13 mi.) | indice ultravioletti a Arcata Wharf (14 mi.) | indice ultravioletti a Samoa (16 mi.) | indice ultravioletti a Eureka Slough Bridge (17 mi.) | indice ultravioletti a Eureka (17 mi.) | indice ultravioletti a Bucksport (19 mi.) | indice ultravioletti a North Spit (Humboldt Bay) (20 mi.) | indice ultravioletti a Elk River Railroad Bridge (21 mi.) | indice ultravioletti a Fields Landing (23 mi.) | indice ultravioletti a Hookton Slough (26 mi.) | indice ultravioletti a Crescent City (48 mi.)