Ntusi
Ntusi is a Late Iron Age archaeological site located in southwestern Uganda that dates from the tenth century to the fifteenth century AD. Ntusi is dominated by two large mounds and manmade scraped valley basins called, bwogero. Long abandoned by the time Hima herdsman grazed their cattle on the Bwera, the herdsman named the site "Ntusi" meaning, "the mounds", after the prominent earthworks. The archaeological record at Ntusi is unmistakable in the signs of intense occupation and activity and it represents the beginning of political complexity in this region of Africa. Bigo bya Mugenyi, another site with prominent earthworks, lies 13 km to the north of Ntusi.
The mounds
The two large mounds and the bwogero are the major earthworks at Ntusi. The mounds, named the male mound and the female mound, are both approximately forty meters in diameter with a depth of deposition measuring 4 meters. Excavations at the female mound revealed the mound had been used as a refuse dump for a significant period. Excavators uncovered broken grindstones, pottery, cattle bones, carbonized sorghum seeds, and other household refuse. The surface of the mound received period burnings in order to reduce pests and foul odors of rotting refuse. Radiocarbon dates for the mound are from the eleventh to the thirteenth century AD. Local agriculture has slowly encroached on the mound and leveled off its surfaces, so much so, that on the southwestern side the mound appears rise very little.Ntusi male mound excavations in 1988 showed that the buildup of the mound was more complicated than the 1921 Wayland and Ntusi III excavations had indicated. The excavated material remains were similar to those in the female mound, but in addition to the household debris, ornamental goods were recovered as well. The upper layers of the mound revealed carved ivory, ostrich eggshell beads, glass beads, and copper trade goods. Radiocarbon testing has dated the Male Mound to be contemporaneous with the Female Mound.
In addition to the main mounds, many smaller mounds are found throughout the site particularly in the area north of the bwogero.
Bwogero
Bwogero are wide scraped basins with surrounding upcast banks in the valley north of the male mound. Reid, who excavated the bwogero in 1991, estimated the volume of material removed in their creation at nearly 30,000 cubic meters. The valleys in and around Ntusi have high water tables and are thus damp or even marshy. Since there is no river at Ntusi, Sutton has argued that the bowgero were not designed earthworks. Rather, bwogero and the resulting upcast on the banks are a result of Ntusi residents digging down to the water table in order to bring water to the surface for their cattle to drink. Alternatively, or possibly secondarily, bwogero development may be a result of kaolin quarrying which was used as plaster.Geography
Located in the Interlacustrine region of southwestern Uganda, Ntusi is dominated by an open rolling grassland called Bwera''.'' The site is approximately 5 km north of the equator and receives 1100 mm of rain a year which makes the region drier than the forests to Ntusi's east and west. The temperatures in this area are high but are not excessive. With its fertile soils, it has enabled the cultivation of a variety of different ranges of crops, with bananas and finger millet are most important.Ntusi is 83 km northwest of Masaka which is west of Lake Victoria, one of the African Great Lakes. Ntusi lies along the main road that connects Mubende and Masaka. It is also 193 km away from Kampala, the capital city of the Republic of Uganda.