Though I don't know the correct English, Yukihatago-Lightning is the festival of lighted reproduced-tavern built by the snow.
Event page
Yukihatago Facebook event page
A picture is worth a thousand words... This year is 10th anniversary of this festival. Gassan-Shizu onsen flourished as village of Japanese-inn for practitioners of Shindo who headed to Mt. Gassan. Now, the tavern in period building were reproduced by snow.
A shrine.
Snow rabbit.