reservoir | Reservoir Dogs | Haweswater Reservoir | Quabbin Reservoir | Pymatuning Reservoir | Möhne Reservoir | Fewston Reservoir | Weare Reservoir | Toledo Bend Reservoir | Swinsty Reservoir | Natural reservoir | Lindley Wood Reservoir | Happy Valley Reservoir | Glenmore Reservoir | Crystal Springs Reservoir | Battle of Chosin Reservoir | Barker Meadow Reservoir | Bakethin Reservoir | reservoir (water) | Reservoir | natural reservoir | Langsett reservoir | Heaton Park Reservoir | Fern Ridge Reservoir | Falcon International Reservoir | Elephant Butte Reservoir | Derwent Reservoir | Deering Reservoir | Cheddar Reservoir | Brent Reservoir |
Small (less than thirty individuals) colonies were known in Manor and Silver lakes in Bucks county, the Tinicum wetlands in Philadelphia and Delaware counties, the West Branch of Conococheague Creek in Franklin County and possibly Springton Reservoir in Delaware county (McCoy 1985).