From
毛泽东《七律·长征》 (Mao Zedong, October 1935):
红军不怕远征难，
万水千山只等闲。
五岭逶迤腾细浪，
乌蒙磅礴走泥丸 (The Red Army fears no hardship of the long march; ten thousand waters, a thousand mountains are mere trifles. The Five Ranges, winding, are leaping ripples; mighty Wumeng rolls by like a pellet of mud).
五岭 = the Five Ranges separating Guangdong/Guangxi from Jiangxi/Hunan;
乌蒙 = the Wumeng range between Yunnan and Guizhou.
