Buses leave JR Tsuruoka Station at 6 and 7 am in summer for the 90-minute trip (¥1,650) to the Gas-san Hachigo-me stop. From there you can hike three hours past the glaciers and wildflowers to the 1,984-meter (6,500-foot) summit of Gas-san, or Moon Mountain—the highest of the three mountains of Dewa district. From the top you can see the whole gorgeous gallery of mountains that is Yamagata, including one called Dewa Fuji (after Mt. Fuji) for its perfect shape. There is even a temple at the top should the spirit take you.