Karuizawa, Nagano

is a Japanese town in the Kitasaku District of Nagano Prefecture.
History.
Karuizawa is on the southern slope of Mount Asama. 
In the Edo period, it was a waystation on the Kisokaido road.
In the early Meiji period, the area was developed as a health resort. 
It is a popular tourist spot for people from Tokyo who travel to Karuizawa to get away from the summer heat.