Manjampatti Valley - Rivers

Rivers

The Manjampatti Valley catchment basin drains into the Chinnar River from the Athioda Stream and to the Amaravathi River from the Kajadaikatti Odai Ar and Ten Ar Rivers 2 kilometres (1.2 mi) to the east.

Athioda is the north to south political and physical boundary for 1.584 miles (2.549 km) between Tamil Nadu and Kerala between the end of the Pambar River and the top of Jambumalai peak at the trijunction of Coimbatore and Dindugul Districts and Kerala State. (This peak is locally known as Chinna Chambu Malai). The top of the ridge to the west above Athioda is the western limit of the catchment. Thus, the western edge of Manjampatti valley extends up to 2 km into Kerala. Athioda stream joins the Pambar River at the point they both join the Chinnar River at the north west corner of the Valley. West of this point, the Chinnar River forms the boundary between the Indira Gandhi National Park in Tamil Nadu and the Chinnar Wildlife Sanctuary in Kerala. East of this point, the Chinnar river becomes the Amaravati River in Tamil Nadu.

The Ten Ar River is fed from most of the valley by the Kumbar stream, the Manalaar River (“sand river”), the Kalyanivalasu Odai and other smaller tributaries from the higher forests and sholas to the east. At the northwest end of the valley, the Ten Ar is joined by the Varavandi Odai stream flowing from a smaller adjacent valley to the east and soon joins the Amaravati River .8 km (0.50 mi) down stream to the west. The Amaravati River then flows north to the Amaravathi Reservoir and Dam and then to the Cauvery River.

The Kudiraiyar River basin, including Kukkal village, is just over the northeast ridge of the valley behind Vellari Malai.