Hubur
... that the Sumerian "river of paradise", the Hubur , derived partly from real geography before becoming a demonic fantasy?
... that the <a href="./Sumerian_religion" id="mwCmU" rel="mw:WikiLink" title="Sumerian religion">Sumerian</a> "river of paradise", the <b id="mwCmY"><a href="./Hubur" id="mwCmc" rel="mw:WikiLink" title="Hubur">Hubur</a></b> <i id="mwCmg">(pictured)</i>, derived partly from real <a href="./Geography" id="mwCmk" rel="mw:WikiLink" title="Geography">geography</a> before becoming a demonic fantasy?