Explore details about location 国道２１８号. 国道２１８号 is a location situated within the 延岡市 alongside other areas such as 国道２１８号, 国道１０号, 稲葉崎平原線. Additionally, some smaller parts of 国道２１８号 include specific areas like 西延岡停車場線, 北方土々呂線 adding to the diversity of its landscape.