C & O Canal
Lock 20
5/4/14
View upstream from footbridge across lock middle

C & O Canal
Lock 20
5/4/14
View downstream from footbridge over lock

C & O Canal
Lock 20
5/4/14
Great Falls Tavern across lock

C & O Canal
Lock 20
5/4/14
Downstream view

C & O Canal
Lock 20
5/4/14
Downstream view including boat dock

C & O Canal
Lock 20
5/4/14
Upstream view

C & O Canal
View east along the canal from the "Charles F. Mercer" west of Lock 20
5/4/14