距特克(ke)斯縣城(cheng)40公(gong)(gong)里處有一(yi)(yi)個克(ke)桑溶洞(dong),屬于喀斯特溶巖(yan)地(di)(di)(di)貌,經專(zhuan)家鑒(jian)定(ding),是新疆唯一(yi)(yi)的石(shi)灰巖(yan)天然(ran)地(di)(di)(di)下溶洞(dong),也是我國(guo)(guo)最(zui)西部的溶洞(dong)。目前(qian),溶洞(dong)已探(tan)明的部分約(yue)3公(gong)(gong)里長,最(zui)寬處約(yue)18米,最(zui)窄處僅(jin)容一(yi)(yi)人匍匐通過(guo)。洞(dong)內石(shi)鐘乳(ru)、石(shi)筍、石(shi)蘑多(duo)呈乳(ru)白、奶黃色(se),少數為(wei)綠(lv)色(se)、黑(hei)色(se),千(qian)姿(zi)百(bai)態(tai),絢(xuan)麗多(duo)彩。特克(ke)斯縣闊克(ke)蘇河上(shang)游還(huan)有一(yi)(yi)片“天山(shan)(shan)石(shi)林(lin)”,為(wei)新疆第一(yi)(yi)大石(shi)林(lin),在全國(guo)(guo)名列第二(er)。它是200萬年(nian)前(qian)強烈造(zao)山(shan)(shan)運(yun)動形成的典型的雅丹(dan)地(di)(di)(di)貌,長約(yue)9公(gong)(gong)里,寬約(yue)5公(gong)(gong)里。天山(shan)(shan)石(shi)林(lin)狀(zhuang)如塔松(song),頂尖底圓,垂直高(gao)聳,一(yi)(yi)般高(gao)20—30米。