Chhachh or Chach (Hindko and Urdu: چھچھ ) is a region located between Peshawar and Islamabad at the northern tip of Attock, consisting of an alluvial plain extending from Attock District of Punjab, Pakistan, southwest of Topi and Swabi.
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It is bounded on the north and west by the Indus river and is about 19 miles (31 km) long (from east to west) and 9 miles (14 km) broad. Percolation from the Indus makes the area extremely fertile. The population of the area is primarily Hindko speakers.
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