ネットサーフィンしていて、The Economist の記事に誤りを見つけました。お暇な方、英文中に誤りがあります。
ずっと下に答えと当記事へのリンクを貼ります。
The quotidian nature of much of his work is part of its strength. This is a map of the Hokkaido Highway, a 500-kilometre-long pleasure route from Edo to Kyoto dotted with inns, restaurants, lodging stations and beauty spots which Hokusai has compressed into a meander of roads, valleys, rills and ravines. The Japanese archipelago looks like a rock-pool but it is also a functional topography with all the sites carefully labelled. Mount Fuji is there as ever: spiritual beacon, monument and wayside marker. This is the Ordnance Survey of Japan as if seen in a vision.
答え Hokkaido → Tokaido
「北海道ハイウェイ地図」 がこの時代に？？？ということで、英国の雑誌らしい間違いです。
しかし、この雑誌は時々北海道その他、日本のローカルネタを書いてくれます。またご紹介しますね。全文はこちらから↓
https://www.1843magazine.com/culture/look-closer/hokusai-old-man-crazy-to-paint