吉成(cheng)(cheng)井(jing)(jing)鹽(yan)(yan)(yan)作坊遺址(zhi), 井(jing)(jing)鹽(yan)(yan)(yan)生(sheng)產(chan)(chan)(chan)(chan)遺址(zhi)。位于四川自(zi)貢(gong)市(shi)大安區楊家沖上鳳嶺(ling)。占地面積25畝,由吉成(cheng)(cheng)井(jing)(jing)、裕(yu)成(cheng)(cheng)井(jing)(jing)、益(yi)(yi)生(sheng)井(jing)(jing)、天(tian)成(cheng)(cheng)井(jing)(jing)等四口鹽(yan)(yan)(yan)井(jing)(jing)組成(cheng)(cheng),留(liu)存(cun)有四座天(tian)車(che)(井(jing)(jing)架)、碓(dui)房、灶房、鹽(yan)(yan)(yan)倉等附屬鹽(yan)(yan)(yan)業生(sheng)產(chan)(chan)(chan)(chan)設施(shi)。吉成(cheng)(cheng)井(jing)(jing)原名裕(yu)豐井(jing)(jing),開(kai)(kai)辦(ban)于清咸(xian)豐、同(tong)治年(nian)(nian)問,井(jing)(jing)深(shen)1 108米(mi)(mi)(mi)(mi)(mi)(mi),井(jing)(jing)徑10厘(li)米(mi)(mi)(mi)(mi)(mi)(mi),天(tian)車(che)高12米(mi)(mi)(mi)(mi)(mi)(mi)。裕(yu)成(cheng)(cheng)井(jing)(jing)原名裕(yu)順(shun)井(jing)(jing),光(guang)緒年(nian)(nian)問由陜幫李世(shi)德號(hao)開(kai)(kai)辦(ban),井(jing)(jing)深(shen)1 213米(mi)(mi)(mi)(mi)(mi)(mi),井(jing)(jing)徑9.93厘(li)米(mi)(mi)(mi)(mi)(mi)(mi),天(tian)車(che)高18米(mi)(mi)(mi)(mi)(mi)(mi)。益(yi)(yi)生(sheng)井(jing)(jing)原名西江井(jing)(jing),咸(xian)豐、同(tong)治年(nian)(nian)間由陜幫雒(luo)永豐號(hao)開(kai)(kai)辦(ban),井(jing)(jing)深(shen)1 018.8米(mi)(mi)(mi)(mi)(mi)(mi),井(jing)(jing)徑10.08厘(li)米(mi)(mi)(mi)(mi)(mi)(mi)。天(tian)成(cheng)(cheng)井(jing)(jing)開(kai)(kai)鉆于同(tong)治六年(nian)(nian)(1867),民(min)國(guo)二年(nian)(nian)(1913)投產(chan)(chan)(chan)(chan),井(jing)(jing)深(shen)1 188米(mi)(mi)(mi)(mi)(mi)(mi),井(jing)(jing)徑10.7厘(li)米(mi)(mi)(mi)(mi)(mi)(mi)。歷經(jing)一百余年(nian)(nian)的生(sheng)產(chan)(chan)(chan)(chan),保存(cun)基(ji)本完好,系極其(qi)珍貴(gui)的清代井(jing)(jing)鹽(yan)(yan)(yan)生(sheng)產(chan)(chan)(chan)(chan)遺址(zhi),為(wei)清代自(zi)貢(gong)社會經(jing)濟發展的“活(huo)化石”。2003年(nian)(nian)4月,自(zi)貢(gong)市(shi)人民(min)政(zheng)府第三次(ci)常務(wu)會議決定由自(zi)貢(gong)市(shi)文(wen)化局對其(qi)進行保護管理。2005年(nian)(nian),自(zi)貢(gong)市(shi)文(wen)化局委托自(zi)貢(gong)市(shi)鹽(yan)(yan)(yan)業歷史博物館代為(wei)管理。