You Collection, Middle Volume Radical: Valley (gǔ) Entry: Long Kangxi strokes: 24 Page 1191, Entry 10 In ancient texts, it is written in a variant form (hong). According to the Tang Dynasty Rhyme Dictionary (Tangyun), it is pronounced long. According to the Collected Rhymes (Jiyun) and the Meeting of Rhymes (Yunhui), it is pronounced long. The pronunciation is the same as long. The Explanation of Simple and Compound Characters (Shuowen Jiezi) defines it as a mountain valley that is both large and deep. It also refers to the appearance of deep and secluded mountain terrain. Additionally, according to the Collected Rhymes (Jiyun), it is pronounced long (falling tone). It refers to the swirling current of water against stones.