ultravioletindeks in Hookton Slough (2.5 mi.) | ultravioletindeks in Elk River Railroad Bridge (2.7 mi.) | ultravioletindeks in North Spit (Humboldt Bay) (3.0 mi.) | ultravioletindeks in Bucksport (4 mi.) | ultravioletindeks in Eureka (6 mi.) | ultravioletindeks in Eureka Slough Bridge (7 mi.) | ultravioletindeks in Samoa (8 mi.) | ultravioletindeks in Arcata Wharf (10 mi.) | ultravioletindeks in Mad River Slough (Arcata Bay) (10 mi.) | ultravioletindeks in Trinidad Harbor (23 mi.) | ultravioletindeks in Shelter Cove (49 mi.)