梁代置伏虞郡安固縣，屬巴州伏虞郡，後周改伏虞郡為蓬州，安固縣為良山縣[1]。後復名安固縣，天寶元年更名良山縣，寶曆元年省入蓬池縣，大中中復置[2]。宋熙寧五年，省良山縣為鎮併入伏虞縣，南渡後，建炎三年復置[3]。元至元二十年，併入營山縣[4]。
參考資料
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