Explore details about location 国道166号 (Route 166). 国道166号 (Route 166) is a location situated within the 大和高田市 alongside other areas such as Nara Kendo 5, 大和高田御所線, 国道１６６号. Additionally, some smaller parts of 国道166号 (Route 166) include specific areas like 国道１６５号, 明日香大和郡山自転車道線 adding to the diversity of its landscape.