Ginzanso

85 Ooaza-Ginzanshinbata, Obanazawa-shi, Yamagata, 999-4333 Japan Show map

Route (I)
Tokyo Station (東京駅) —-> (3h 15 min by JR Shinkansen [1] ) —-> Oishida Station (大石田駅) —-> (35 min by bus [2]) —-> Bus stop: Ginzan Onsen —-> (1 min on foot) —-> Ginzanso
[1] JR Yamagata Shinkansen, 12670 yen (1 every 2 hours)
[2] Hanagasa Bus, 710 yen (5 every day)

Route (II)
Sendai Station (仙台駅) —-> (1h 15 min by JR [1] ) —-> Uzen-Chitose Station (or Yamagata Station)  —-> (40 min by JR [2] ) —-> Oishida Station (大石田駅) —-> (35 min by bus [3]) —-> Bus stop: Ginzan Onsen —-> (1 min on foot) —-> Ginzanso
[1] JR Senzan Line (2 to 3 every hour)
[2] JR Yamagata Line (1 to 2 every hour), JR Train fare 1,660 yen
[3] Hanagasa Bus, 710 yen (5 every day)

The rates are those as of August 2017.
The required times may slightly vary depending on the time of day.