| Physical |
| Cauvery basin spans an area around 81155 km2 and runs from a northwest to south eastern direction along a general south easterly slope. Catchment area of this basin can be divided into three sections; upper catchment areas with steep slopes; middle catchment area mostly in Tamil Nadu and lower catchment area which is confined to the plains in Tamil Nadu. |
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| Area : |
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| Source : Data Source:Dept of Economics & Statistics(2003-04) |
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| Around 81155 km2 area comes under the Cauvery basin, which is nearly 2.5% of the total geographical area of the country. The basin is located between 1007 N and 13 0 28 N and 75 0 28 E and 79 0 52 E. The catchment of the river basin lies in the states of Karnataka, Tamil Nadu, Kerala and Union Territory of Pondicherry. Of the total area of the basin, 41.2% falls in the state of Karnataka, 55.5% in the state of Tamil Nadu and 3.3 % in Kerala. The width of the basin ranges from 65 to 250 km. The total length of the river from its source to its outfall in Bay of Bengal is about 800 km of which 320 km is in Karnataka, 416 km in Tamil Nadu. |
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| Cauvery basin is bounded on the north by the ridges separating it from Krishna and Pennar basin, on the south and east by the Eastern Ghats and on the west by Western Ghats |
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| In the map, the area in Hectares is given for all the districts that fall within the Cauvery basin in the area. The bigger districts are shown in dark green tone. Please note that this map is based on older data and hence administrative boundaries may not confirm to the actual administrative boundaries. |
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| Cauvery Basin |
34273 |
2866 |
43867 |
149 |
81155 |
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| Source: CPCB, 1995: Comprehensive river basin report |
