The Paw Paw Tunnel is one of the major features of the canal, built as a bypass to some very difficult terrain along the Potomac River in Paw Paw Bends. Here the river makes a series of gargantuan loops; the tunnel route cutting across one large double loop takes 1 m where river takes six. While tunnel route involved cutting thru 3118' of solid rock, the Maryland shore of river route contains some impressive cliffs coming right down to the river. 

.....

My words rained over you, stroking you.
A long time I have loved the sunned mother-of-pearl of your body.
I go so far as to think that you own the universe.
I will bring you happy flowers from the mountains, bluebells,
dark hazels, and rustic baskets of kisses.
I want to do with you what spring does with the cherry trees.