This is the list of existing Lancaster County water-powered mills organized by water source.
Big Beaver Creek
Calamus Run
Cedar Run
Chiques Creek
Climber’s Run
Cocalico Creek
Conestoga River
Conowingo Creek
Conoy Creek
Dellinger Run
Donegal Creek
Eshelman Run
Fishing Creek
Groff Run
Hammer Creek
Harnish Run
Kauffman’s Run
Lititz Run
Little Chiques Creek
Little Cocalico Creek
Little Conestoga Creek
Little Muddy Creek
Middle Creek
Mill Creek
Muddy Creek
Pequea Creek
Raccoon Creek
West Branch of Little Conestoga
West Branch of Octoraro
White Horse Run
Witmer’s Run