Explore details about location 国道４２号. 国道４２号 is a location situated within the 有田市 alongside other areas such as 箕島停車場線, 有田湯浅線, 国道４２号. Additionally, some smaller parts of 国道４２号 include specific areas like 国道４８０号, 宮崎古江見線 adding to the diversity of its landscape.