Japan's most famous geisha are from Kyoto, Japan's former capital and still a major cultural capital of Japan. But I've also heard of onsen geisha, far away from the big cities, who are at the bottom of the pecking order of geisha.
Do such geisha still exist nowadays? Wikipedia's article on geisha mention that the number of geisha overall have declined dramatically, and I suspect the lower-grade geisha might be more likely to disappear.
Wikipedia has an article on onsen geisha, with a description of their status post World War 2, but it's rather brief and doesn't feel authoritative.
I'm making the assumption that there's such a thing as "onsen geisha". Is this a valid assumption, or is "onsen geisha" just a pejorative title that no-one would use about themselves?