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The valley was named for William Newsome who settled in the area in 1838. It is approximately 4 miles (6.4 km) long and up to .75 miles (1.21 km) wide. The NNL covers 1,700 acres (690 ha), but the total karst area is around 9,925 acres (4,017 ha). [2]
Newsome Sinks Karst Area: November 1973: Union Hill: Morgan: Private An area hollowed out by more than 40 caves, with over 50,000 feet (15,000 m) of known passages. Red Mountain Expressway Cut: November 1987: Birmingham
Karst topography is a geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone or dolomite, but also in gypsum. [1] It has also been documented for weathering -resistant rocks, such as quartzite , given the right conditions. [ 2 ]
Karst springs - springs that often carry cave water. [29] Karst windows - small section of a underground river that is exposed to the surface. [30] Limestone - Calcium carbonate based sedimentary rock that often forms caves. [31] Losing streams - a common feature of karst areas. [32] Sinkholes - collapse features that often form cave entrances ...
The fauna and flora of Alabama are similar to those of the Gulf states in general and have no distinctive characteristics. However, the Mobile River system has a high incidence of endemism among freshwater mollusks and biodiversity is high. In Alabama, vast forests of pine constitute the
Karst is a landscape filled with limestone or other similarly soluble rocks underground. Acidic waters erode the underlying rocks over millions of years and leave an underground drainage system ...
It is notable for its extensive karst limestone, which comprise the caves at Mammoth Cave National Park. This region includes a portion of what the U.S. Forest service calls the "Central Hardwood Forest". [2] The region extends from southern Ohio, Indiana and Illinois through Tennessee and central Kentucky and into northern Alabama.
Cathedral Caverns is a karst cave with a large stalagmite forest covering approximately 3 acres (1.2 ha). The public portion of the cave extends along 8-foot-wide (2.4 m) wheelchair-accessible, concrete walkways for approximately 3,500 feet (1,100 m) and has some 2 miles (3.2 km) of paths; another 2,700 feet (820 m) extend beyond the end of the pathway. [3]