Search results
Results from the WOW.Com Content Network
The James River Gorge is a water gap created by the James River in Central Virginia.The Gorge is 2,433 feet (742 m) [1] deep as measured from Highcock Knob 3,073 feet (937 m) [1] to the James River 640 feet (200 m) [1] and is approximately 9.3 miles (15.0 km) [2] long.
The James at Percival's Island Riverwalk in Lynchburg, Virginia. The James River is a river in Virginia that begins in the Appalachian Mountains and flows from the confluence of the Cowpasture and Jackson Rivers in Botetourt County 348 miles (560 km) [3] to the Chesapeake Bay. [4]
The reservoir area is a gently rolling plain with a surface blanket of glacial till over-lying thin-bedded, highly jointed Pierre Shale. In this plain the James River has cut a valley 1,000 to 4,000 feet wide and 50 to 100 feet deep, which forms the reservoir. The overburden of the reservoir area consists of three types:
Bosher's Dam is a historic low head dam (also called a weir) built upon the James River just west of Richmond, Virginia.It is a 12-foot-high stone structure which interrupts the natural flow of Virginia's largest self-contained river by spanning the waterway between suburban Tuckahoe in Henrico County and the western part of Richmond just west of the Edward E. Willey Bridge.
Depth contour lines show the shape of underwater relief. Coloured areas of the sea emphasise shallow water and dangerous underwater obstructions. Depths are measured from the chart datum, which is related to the local sea level. The chart datum varies according to the standard used by each national Hydrographic Office.
The James River (also known as the Jim River or the Dakota River) is a tributary of the Missouri River, approximately 710 miles (1,140 km) long, draining an area of 20,653 square miles (53,490 km 2) in the U.S. states of North Dakota and South Dakota. [1] About 70 percent of the drainage area is in South Dakota. [2]
The use of bathymetry and the development of bathymetric charts dates back around the 19th century BC to ancient Egypt.Depictions on tomb walls such as the bas-relief carvings of Deir al-Bahri commissioned by Queen Hatshepsut in the 16th century BC show ancient mariners using long slender poles as sounding poles to determine the depth of the Nile River and into the Nile River Delta.
The first recorded evidence of water depth measurements are from Ancient Egypt over 3000 years ago. [3] Bathymetry has various uses including the production of bathymetric charts to guide vessels and identify underwater hazards, the study of marine life near the floor of water bodies , coastline analysis and ocean dynamics , including ...