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Northern Glaciated Shale and Slate Valleys
Ecoregion
in
Appalachian Mountains
in
NJ
,
PA
,
NY
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The Northern Glaciated Shale and Slate Valleys ecoregion contains broad, irregular, rolling to hilly valleys underlain by slaty shale and fine-grained sandstone and covered by glacial drift. Relief, drainage density, surficial runoff, and stream erosion potential are greater than in the limestone valleys of Ecoregion 67j. Resultant stream turbidity and siltation are also greater than in limestone ecoregions. Ecoregion 67k does not have as much agricultural area as the fertile Northern Glaciated Limestone Valleys (67j). Farms produce small grain, corn, and hay, and woodland occurs on steep slopes. Native vegetation is mixed oak-sugar maple-northern hardwood forest. Although much of the valley has been cleared for agriculture, there are pockets of ecological significance. Streams and rivers with riparian buffer zones support some rare or threatened species, such as the eastern lampmussel and bog turtle. Grassland birds and raptors may be found in fallow fields or in areas that are not intensively farmed.
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EPA
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Ecoregion
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