Check the road condition and status before you come by car. Snow tyres / studless tyres needed from December to April around this area even if snow hasn’t covered on the road. Or get chains at petrol station.
Shiga Kogen main route from Snow Monkey Park
Check No.1-6, and 14-16. No.1 shows near the snow monkey park.
http://hokushin.pref-nagano-roadcamera.jp/
Yakebitaiyama ski resort
https://www.princehotels.co.jp/ski/shiga/livecamera/
Each resorts of Shiga Kogen
https://www.shigakogen.gr.jp/english/live/index.html
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