The Ngonye Falls or Sioma Falls are a waterfall

Waterfall

A waterfall is a place where flowing water rapidly drops in elevation as it flows over a steep region or a cliff.-Formation:Waterfalls are commonly formed when a river is young. At these times the channel is often narrow and deep. When the river courses over resistant bedrock, erosion happens...

 on the Zambezi

Zambezi

The Zambezi is the fourth-longest river in Africa, and the largest flowing into the Indian Ocean from Africa. The area of its basin is , slightly less than half that of the Nile...

 river in Western Zambia

Zambia

Zambia , officially the Republic of Zambia, is a landlocked country in Southern Africa. The neighbouring countries are the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west....

, near the town of Sioma and a few hundred kilometers upstream from the Victoria Falls

Victoria Falls

The Victoria Falls or Mosi-oa-Tunya is a waterfall located in southern Africa on the Zambezi River between the countries of Zambia and Zimbabwe.-Introduction:...

. Situated in the southern part of Barotseland

Barotseland

Barotseland is a region in the western part of Zambia, and is the homeland of the Lozi people or Barotse who were previously known as Luyi or Aluyi. Its heartland is the Barotse Floodplain on the upper Zambezi River, also known as Bulozi or Lyondo, but it includes the surrounding higher ground of...

, the falls are a difficult two or three day journey from the capital, Lusaka

Lusaka

Lusaka is the capital and largest city of Zambia. It is located in the southern part of the central plateau, at an elevation of about 1,300 metres . It has a population of about 1.7 million . It is a commercial centre as well as the centre of government, and the four main highways of Zambia head...

. Their inaccessibility makes them much less known than Victoria Falls.

The falls are formed by the same geological process as Victoria Falls, with cracks in the basalt

Basalt

Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...

 riverbed being eroded

Erosion

Erosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...

 away to form the drop. Their height is only 10-25 meters, but the width of the falls is impressive. They form a broad crescent, interrupted by rocky outcrops.

Upstream from the falls, the river is broad and shallow as it flows across Kalahari sands, but below the falls extensive white water rapids exist, as the river is hemmed in by gorges cut into basalt rock.

The surrounding area supports extensive wildlife

Wildlife

Wildlife includes all non-domesticated plants, animals and other organisms. Domesticating wild plant and animal species for human benefit has occurred many times all over the planet, and has a major impact on the environment, both positive and negative....

, especially in the nearby Sioma Ngwezi National Park

Sioma Ngwezi National Park

Sioma Ngwezi National Park is a 5000-square-kilometre park in the very south west corner of Zambia. It is undeveloped and rarely visited, lacking roads and being off the usual tourist tracks, but this may change in the future....

, and elephant

Elephant

Elephants are large land mammals in two extant genera of the family Elephantidae: Elephas and Loxodonta, with the third genus Mammuthus extinct...

s are frequently seen by the river in the vicinity of the falls.