The upper and lower reaches of the Indus

Source: http://www.history.upenn.edu/coursepages/hist086/material/slideshow2.htm
(downloaded May 2006)

The fertile lower reaches of the Ganges

Source: http://www.history.upenn.edu/coursepages/hist086/material/slideshow2.htm
(downloaded May 2006)

Major river basins of India and the modern water supply situation

Source: http://www.history.upenn.edu/coursepages/hist086/material/IndiaRiverBasins.gif
(downloaded May 2006)

A rainfall map of South Asia, from the zoomable online Schwartzberg atlas: *p. 5*

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The disastrous floods that hit Pakistan in summer 2010; a map from the New York Times, Aug. 20, 2010, p. A9