Explore details about location 本渡苓北線. 本渡苓北線 is a location situated within the 天草市 alongside other areas such as 国道２６６号, 国道３２４号, 本渡牛深線. Additionally, some smaller parts of 本渡苓北線 include specific areas like 本渡五和線 adding to the diversity of its landscape.