祁水又名“小東(dong)(dong)江(jiang)”,湘(xiang)江(jiang)一級(ji)支流(liu),發源于湖(hu)南省衡陽(yang)(yang)市(shi)祁東(dong)(dong)縣(xian)四明(ming)山東(dong)(dong)側(ce)邵陽(yang)(yang)縣(xian)的(de)九塘坳。該河(he)流(liu)流(liu)經邵陽(yang)(yang)市(shi)邵陽(yang)(yang)縣(xian)、衡陽(yang)(yang)市(shi)祁東(dong)(dong)縣(xian)、永州市(shi)祁陽(yang)(yang)縣(xian),于祁陽(yang)(yang)縣(xian)浯溪鎮-東(dong)(dong)江(jiang)村頭海水灣(wan)入(ru)湘(xiang)江(jiang)。
祁(qi)水(shui)(shui)又名“小東江(jiang)(jiang)”,湘(xiang)江(jiang)(jiang)一級支(zhi)流(liu),發源于湖南省邵(shao)陽(yang)市四(si)明山(shan)東側的九塘(tang)坳。該河(he)流(liu)流(liu)經邵(shao)陽(yang)縣(xian)(xian)(xian)、祁(qi)東縣(xian)(xian)(xian)、祁(qi)陽(yang)縣(xian)(xian)(xian),于祁(qi)陽(yang)縣(xian)(xian)(xian)浯溪(xi)鎮(zhen)-東江(jiang)(jiang)村(cun)頭(tou)海水(shui)(shui)灣入(ru)湘(xiang)江(jiang)(jiang)。祁(qi)水(shui)(shui)長114公(gong)里,流(liu)域(yu)面積1685平方(fang)公(gong)里,流(liu)域(yu)內(nei)屬亞熱帶季風氣候,祁(qi)水(shui)(shui)為祁(qi)東縣(xian)(xian)(xian)西北部和祁(qi)陽(yang)縣(xian)(xian)(xian)北部農(nong)田灌溉主要水(shui)(shui)源。為祁(qi)陽(yang)縣(xian)(xian)(xian)浯溪(xi)鎮(zhen)內(nei)唯(wei)一一條支(zhi)流(liu)。多年(nian)平均流(liu)量23.9秒(miao)立米,多年(nian)平均徑(jing)流(liu)量7.55億立方(fang)米。祁(qi)水(shui)(shui)在(zai)祁(qi)陽(yang)境(jing)內(nei)河(he)長67.2公(gong)里,流(liu)域(yu)面積568.2平方(fang)公(gong)里。在(zai)祁(qi)水(shui)(shui)匯入(ru)湘(xiang)江(jiang)(jiang)處,有著名的祁(qi)陽(yang)文昌寶(bao)塔以(yi)及百(bai)年(nian)學府祁(qi)陽(yang)一中。