The rainfall in Kudremukh, which is one of the highest for any open cast mining operation in the world, greatly accentuates the impacts of siltation as claimed by environmentalists. The topographic and rainfall characteristics in combination with the open cast mining of low grade iron ore and other land-surface disturbances caused by the KIOCL operations resulted in very high sediment discharge, with over 60% of the total siltation in the Bhadra system being contributed by the mining area which forms less than six percent of the catchment. With high-quality practices adopted by KIOCL to mine, the flora and fauna remained intact, causing no adverse effects on nature.