The Magic of Oz

place

Ripple Land

First named in The Emerald City of Oz, ch. 8

2 of 2 citations here quote the sentence they rest on. All of them are checked against the book on every build.

As the books describe it

a succession of hills and valleys, all very steep and rocky, and they changed places constantly by rippling. The Emerald City of Oz, ch. 8

Appearances

Seen here

From the chapters set there, and from sentences that put the two together with a word of place. Being named in the same chapter is not enough.