Ancient Provinces of Japan

When I was reading up on Bakumatsu (the final years of the Edo period), I realised that although I have heard of place names like Satsuma, Choshu, Tosa, Saga, and the like, I haven’t really tried to match them to their relevant modern prefectures. So I went searching for a map of the ancient provinces of Japan and managed to find a clear one. It’s nice to be able to see all the pieces fitting together, as I struggle to understand a part of Japan’s history (between 1853 and 1868), just in case I need such knowledge for interpretation.