Mile: 19 - 20
Along the Potomac
Black VultureMile 19 includes Lock #22, known as Pennyfield Lock, at mile 19.63. Pennyfield Lock has parking and access to the towpath. Turn from River Road onto Pennyfield Lock Road and follow Pennyfield Lock Road to the end.
Pennyfield Lock is a wonderful spot for finding songbirds during spring migration. Each May, DC Audubon runs a field trip to this part of the canal to look for newly-arrived warblers. See the report from the May 2007 trip for an idea of what is possible.
For more information visit: http://www.nps.gov/choh/
