Nada Tunnel
... that the Nada Tunnel of Kentucky serves "as the gateway to the Red River Gorge"?
... that the <b id="mwC0I"><a href="./Nada_Tunnel" id="mwC0M" rel="mw:WikiLink" title="Nada Tunnel">Nada Tunnel</a></b> of Kentucky serves "as the gateway to the <a href="./Red_River_Gorge" id="mwC0Q" rel="mw:WikiLink" title="Red River Gorge">Red River Gorge</a>"?