indice ultravioletti a Eureka (1.5 mi.) | indice ultravioletti a Eureka Slough Bridge (2.1 mi.) | indice ultravioletti a Mad River Slough (Arcata Bay) (2.7 mi.) | indice ultravioletti a Arcata Wharf (3 mi.) | indice ultravioletti a Bucksport (4 mi.) | indice ultravioletti a North Spit (Humboldt Bay) (5 mi.) | indice ultravioletti a Elk River Railroad Bridge (5 mi.) | indice ultravioletti a Fields Landing (8 mi.) | indice ultravioletti a Hookton Slough (10 mi.) | indice ultravioletti a Trinidad Harbor (16 mi.) | indice ultravioletti a Shelter Cove (56 mi.)