Sandhills

Sandhills or Sand Hills may refer to:

Canada

United Kingdom

United States

Sandhills (Nebraska)

The Sandhills, often written Sand Hills, is a region of mixed-grass prairie on grass-stabilized sand dunes in north-central Nebraska, covering just over one quarter of the state. The dunes were designated a National Natural Landmark in 1984.

The sandhills are found in Arthur, Blaine, Brown, Cherry, Custer, Garden, Garfield, Grant, Holt, Hooker, Lincoln, Keith, Logan, Loup, McPherson, Morrill, Rock, Sheridan, Thomas, and Wheeler counties.

Geography

The boundaries of the Sandhills are variously defined by different organizations. Depending on the definition, the region's area can be as small as 19,600 mi² (50,760 km²) or as large as 23,600 mi² (61,100 km²).

Dunes in the Sandhills may exceed 330 ft (100 m) in height. The average elevation of the region gradually increases from about 1,800 ft (550 m) in the east to about 3,600 ft (1,100 m) in the west.

The Sandhills sit atop the massive Ogallala Aquifer; thus both temporary and permanent shallow lakes are common in low-lying valleys between the grass-stabilized dunes prevalent in the Sandhills. The eastern and central sections of the region are drained by tributaries of the Loup River and the Niobrara River, while the western section is largely composed of small interior drainage basins.

Sandhills (Carolina)

The Sandhills is a region in the interior of the U.S. states of North Carolina and South Carolina. It is a strip of ancient beach dunes which generally divides the Piedmont from the coastal plain, and is the evidence of a former coastline when the ocean level was higher, or the land lower. The beach deposits were formed principally during the Miocene Epoch, about 20 million years ago. Typical beach fossils are found along the front edges. The coastal plain is terraced from other ocean levels, but none appear to have been so long-lasting, so as to build up dunes of this size.

Vegetation

Because they are predominantly porous, sandy soils, the area tends to be droughty and irrigation is required for agriculture. Some areas are noted for peach production, primarily because peaches need a well drained soil.

Prior to agricultural use, most of the Sandhills were forested with longleaf pine, loblolly pine, turkey oak, and blackjack oak. In areas of extreme drainage, the forests are visibly scrubby. Oaks increase under conditions of wildfire exclusion, whereas longleaf pine will dominate under a regime of frequent fires. Understory vegetation is of plants that are well adapted to droughty conditions, as well as the frequent lightning-induced fires typical of the region. Wiregrass (Aristida spp.) is frequently extensive in the understory. Carnivorous plants, especially pitcher plants, often occur in the herb layer.