吉成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)鹽作坊遺址, 井(jing)(jing)(jing)(jing)鹽生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)遺址。位于四川自(zi)貢(gong)市大安(an)區楊(yang)家沖(chong)上鳳嶺。占地面積25畝,由(you)吉成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)、裕(yu)成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)、益生(sheng)(sheng)(sheng)(sheng)井(jing)(jing)(jing)(jing)、天(tian)成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)等四口鹽井(jing)(jing)(jing)(jing)組成(cheng)(cheng)(cheng),留存有(you)四座天(tian)車(che)(井(jing)(jing)(jing)(jing)架)、碓房、灶房、鹽倉等附屬鹽業生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)設施(shi)。吉成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)原名(ming)(ming)裕(yu)豐井(jing)(jing)(jing)(jing),開辦(ban)(ban)于清咸(xian)豐、同(tong)(tong)治(zhi)(zhi)年(nian)(nian)問,井(jing)(jing)(jing)(jing)深1 108米(mi),井(jing)(jing)(jing)(jing)徑(jing)(jing)(jing)10厘(li)(li)米(mi),天(tian)車(che)高12米(mi)。裕(yu)成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)原名(ming)(ming)裕(yu)順井(jing)(jing)(jing)(jing),光緒年(nian)(nian)問由(you)陜幫李世德號(hao)開辦(ban)(ban),井(jing)(jing)(jing)(jing)深1 213米(mi),井(jing)(jing)(jing)(jing)徑(jing)(jing)(jing)9.93厘(li)(li)米(mi),天(tian)車(che)高18米(mi)。益生(sheng)(sheng)(sheng)(sheng)井(jing)(jing)(jing)(jing)原名(ming)(ming)西(xi)江(jiang)井(jing)(jing)(jing)(jing),咸(xian)豐、同(tong)(tong)治(zhi)(zhi)年(nian)(nian)間由(you)陜幫雒永豐號(hao)開辦(ban)(ban),井(jing)(jing)(jing)(jing)深1 018.8米(mi),井(jing)(jing)(jing)(jing)徑(jing)(jing)(jing)10.08厘(li)(li)米(mi)。天(tian)成(cheng)(cheng)(cheng)井(jing)(jing)(jing)(jing)開鉆于同(tong)(tong)治(zhi)(zhi)六年(nian)(nian)(1867),民國二年(nian)(nian)(1913)投產(chan)(chan)(chan),井(jing)(jing)(jing)(jing)深1 188米(mi),井(jing)(jing)(jing)(jing)徑(jing)(jing)(jing)10.7厘(li)(li)米(mi)。歷(li)(li)經一百(bai)余年(nian)(nian)的(de)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan),保(bao)存基(ji)本完好,系極其珍貴(gui)的(de)清代井(jing)(jing)(jing)(jing)鹽生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)遺址,為(wei)清代自(zi)貢(gong)社會經濟發展的(de)“活化(hua)石”。2003年(nian)(nian)4月(yue),自(zi)貢(gong)市人民政府第三次常務會議決定由(you)自(zi)貢(gong)市文化(hua)局(ju)對(dui)其進行保(bao)護管(guan)理。2005年(nian)(nian),自(zi)貢(gong)市文化(hua)局(ju)委托自(zi)貢(gong)市鹽業歷(li)(li)史博物(wu)館代為(wei)管(guan)理。