Stony Clove Notch
... that Stony Clove Notch, a pass in the Catskill Mountains, was once so narrow that it could only be traversed by people walking in single file?
... that <b id="mwBfU"><a href="./Stony_Clove_Notch" id="mwBfY" rel="mw:WikiLink" title="Stony Clove Notch">Stony Clove Notch</a></b>, a <a href="./Mountain_pass" id="mwBfc" rel="mw:WikiLink" title="Mountain pass">pass</a> in the <a href="./Catskill_Mountains" id="mwBfg" rel="mw:WikiLink" title="Catskill Mountains">Catskill Mountains</a>, was once so narrow that it could only be traversed by people walking in single <a href="./File_(formation)" id="mwBfk" rel="mw:WikiLink" title="File (formation)">file</a>?