Joetsu Kokusai is one of the resorts in Minamiuonuma. (Next to Mt Granview, in fact). Just to the north of Yuzawa and about 20 minutes drive from central Yuzawa.
The mountain it's on doesn't look too big, so it kind of looks flattish, but I didn't feel that once I was up there. There's a decent selection of runs and after reading some other reviews saying that planning in advance was recommended I made sure that I went
Ishiuchi Maruyama is a decent sized place just outside the border of Yuzawa town, about 5 minutes drive from Yuzawa IC and probably the same from Shiozawa Ishiuchi IC.
Was there for 5 hours today, snow was pretty good. Wasn't busy at all, but not empty either. As someone else mentioned in a recent review, there's a number of different 'bases'. It's one of those places where it's best to have an idea of the layout before you