indice ultravioletti a North Spit (Humboldt Bay) (1.4 mi.) | indice ultravioletti a Bucksport (1.6 mi.) | indice ultravioletti a Fields Landing (2.7 mi.) | indice ultravioletti a Eureka (4 mi.) | indice ultravioletti a Eureka Slough Bridge (4 mi.) | indice ultravioletti a Hookton Slough (5 mi.) | indice ultravioletti a Samoa (5 mi.) | indice ultravioletti a Arcata Wharf (8 mi.) | indice ultravioletti a Mad River Slough (Arcata Bay) (8 mi.) | indice ultravioletti a Trinidad Harbor (21 mi.) | indice ultravioletti a Shelter Cove (51 mi.)