Notes on the Geography of Peninsular India: Vicinity of Hampi: Photo 29
And here, within the Hampi site, is the Hiriya Canal, now called the Turtha or "Swift" Channel and dating back to about 1400. The point being that this is a desert, with about 11 inches of precipitation annually. To found an empire here required elaborate water-control works. The Tungabhadra Dam is just the last chapter in a long story.
Short link for this page: http://www.greatmirror.com?justpic=35247