Are there more mountains than rivers in China and Korea?

 ANSWER: I guess there are.

雨積千江肥, 葉落萬山瘦 (우적천강비, 엽락만산수)

[When] the rain (雨) collects (積), a thousand (千) rivers (江) get fat (肥); [when] the leaves (葉) fall (落), ten thousand (萬) mountains (山) get thin (瘦).