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This list of mammals in Pennsylvania consists of 66 species currently believed to occur wild in the state. This excludes feral domesticated species such as feral cats and dogs . Several species recently lived wild in Pennsylvania, but are now extirpated (locally, but not globally, extinct).
The dams slow water, trapping silt and pollutants. Conowingo Dam [1] is credited with preventing much of the silt from Pennsylvania from reaching the Chesapeake Bay. The dam spillways can add oxygen to the water. The down stream side of dams is favored by aquatic birds, possibly because the fish that pass through the dam are a bit stunned.
Following is a list of dams and reservoirs in Pennsylvania. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
Pymatuning State Park is the largest state park in Pennsylvania and contains the 17,088 acres (69.15 km 2) of Pymatuning Lake, three-quarters of which is in Pennsylvania and one-quarter of which is in Ohio. A 1.7-mile (2.7 km) causeway extends between Pennsylvania and Ohio near the center of the lake. The lake provides fishing and boating year ...
All reservoirs in Pennsylvania should be included in this category. The main article for this category is List of dams and reservoirs in Pennsylvania; Wikimedia Commons has media related to Reservoirs in Pennsylvania; See also category Lakes of Pennsylvania
The Allegheny National Forest lies in the heart of Pennsylvania's oil and gas region. It is only 40 miles (64 km) from the site of the first commercial oil well in the United States at Titusville, Pennsylvania. In 1981, about 17 percent of the state's crude oil production came from mineral rights owned by private individuals within the Forest ...
As nearly 40% of the country is currently in drought, scientists are looking to the largest rodent in North America for help: the beaver.Researchers in California and Utah found that dams made by ...
This section includes Pennsylvania's highest point, Mount Davis, which stands at 3,213 feet (979 m) above sea level. Many of the mountains are long and broad with relatively shallow and broad valleys. Unlike the Appalachian Mountain section, the streams of this area have not cut deep and well defined valleys into the earth.