indice ultravioletti a North Spit (Humboldt Bay) (1.2 mi.) | indice ultravioletti a Elk River Railroad Bridge (1.6 mi.) | indice ultravioletti a Eureka (2.5 mi.) | indice ultravioletti a Eureka Slough Bridge (3 mi.) | indice ultravioletti a Samoa (4 mi.) | indice ultravioletti a Fields Landing (4 mi.) | indice ultravioletti a Mad River Slough (Arcata Bay) (6 mi.) | indice ultravioletti a Hookton Slough (6 mi.) | indice ultravioletti a Arcata Wharf (6 mi.) | indice ultravioletti a Trinidad Harbor (19 mi.) | indice ultravioletti a Shelter Cove (53 mi.)