Cove (Appalachian Mountains)
Among the places where the word "cove" appears in the name of an Appalachian valley are Morrison Cove in Pennsylvania; Lost Cove, North Carolina; Bumpass Cove, Tennessee; Doran Cove, Grassy Cove, Ladd Cove, in or adjacent to the Sequatchie Valley of Tennessee and Alabama; and numerous locations in the Great Smoky Mountains, including Cades Cove, Greenbrier Cove, Miller Cove, Tuckaleechee Cove, and Wears Cove. Burke's Garden in western Virginia is another example of a cove.
Geologically, some coves are windows formed by erosion that penetrated through the overlying thrust sheet, exposing the younger limestone beneath. Cades Cove and Wears Cove in Tennessee are examples of limestone coves, in which fertile soils have formed on the limestone parent material in the valley bottoms.
Cove forest is the name for a type of deciduous forest community associated with Appalachian mountain coves. Cove forests, which are unique to the Appalachian Mountains and are a subtype of Appalachian-Blue Ridge forests, are found in protected positions in the landscape at middle to low elevations and are typified by high species richness of both plants and animals. Canopy species in this forest type include American basswood, tulip poplar, sugar maple, red maple, yellow birch, beech, white ash, bigleaf magnolia, bitternut hickory, and Eastern hemlock. Carolina silverbell and eastern redbud are important understory trees. Notable flowering shrubs include rhododendron, flame azalea, and mountain laurel.  Animals noted for their abundance and diversity in cove forest habitats include salamanders, birds, and small mammals.
The cove forest community is particularly well developed in the Great Smoky Mountains, where some 72,000 acres (290 km2) of cove forest are still old-growth. The forest there is categorized into three subclasses. The rich montane subclass is found in protected coves with nutrient-rich soils, typically at elevations of 610 to 1,400 m (2,000 to 4,600 feet), in eastern Tennessee, western North Carolina, and southwestern Virginia. Dominant trees may include sugar maple, yellow buckeye, white ash, silverbell, or basswood, but yellow birch and beech are not dominant species. Bitternut hickory and northern red oak also may be common in the canopy. A defining feature of the rich montane association is the presence of lush herbaceous flora, including calciphilic plants whose presence indicates soils of neutral to alkaline pH (typically formed on limestone). The typic montane subclass of cove forest is characterized by the absence or scarcity of calciphilic species and is found on non-limestone soils at elevations of 600 to 1,370 m (2,000-4,500 feet) in the southern Blue Ridge, including the Smoky Mountains, and 300 to 900 m (1,000-3,000 feet) in the northern Blue Ridge and adjacent Ridge and Valley. Dominant canopy trees include yellow buckeye, white ash, basswood, cucumber-tree magnolia, tulip poplar, red maple, Eastern hemlock, and black birch. Typical subcanopy trees and shrubs include flowering dogwood, striped maple, sweetshrub, and rosebay rhododendron. In the third subclass, the typic foothills type, tulip poplar is the dominant species, but the canopy also may include basswood, white ash, mockernut hickory, yellow buckeye, silverbell, American beech, white oak, and red maple. Ferns are often common in the herbaceous layer. This subclass, found on protected sites at elevations mostly below 610 m (2,000 feet), lacks species typical of higher elevation cove forests. 
- ^ a b Benjamin J. Cramer Collection, Archives of Appalachia
- ^ Harry Moore, A Roadside Guide to the Geology of the Great Smoky Mountains National Park (Knoxville: University of Tennessee Press, 1988), 29.
- ^ a b Cove Forests in the Encyclopedia of Southern Appalachian Forest Ecosystems
- ^ A Field Guide to Eastern Forests: North America, by John C. Kricher. 1998. Houghton Mifflin Field Guides. ISBN 0395928958
- ^ Mary Byrd Davis (23 January 2008). "Old Growth in the East: A Survey. North Carolina". http://www.primalnature.org/ogeast/nc.pdf.
- ^ Ecological Communities > Forest > Deciduous Formation Subclass - Biodiversity of Great Smoky Mountains National Park, Discover Life in America website (accessed January 22, 2008)
- ^ Southern Appalachian Cove Forest (Rich Montane Type), Discover Life in America website (accessed January 22, 2008)
- ^ a b Southern Appalachian Cove Forest (Typic Montane Type), Discover Life in America website (accessed January 22, 2008)
- ^ Southern Appalachian Cove Forest (Typic Foothills Type), Discover Life in America website (accessed January 22, 2008)
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