User blog comment:KusaNin/Village Economies/@comment-4558186-20160730020449/@comment-25156300-20160730025953

For Rain, I could see the flora/fauna just like Kiri's country. I could also see some kind of industrial supply due to the look of Amegakure. The glowing moss is cool, and I could even tie in a study of it for Grass Release.

Land of Rivers with gold/gems sounds like a good one. If I decide to have crystals excavated for trade like I mentioned in an earlier comment, there could be some interaction there.

For Yugakure and Ishigakure, I'll probably have those for if I need a minor trade or meeting, since there isn't anything too unique for them. I'll probably look up Frost to see if I come up with anything now that I've started hearing all these ideas.

Thanks :)