[1] The map alongside shows a part of the Ranchi plateau, most of it at an average elevation of 2,140 feet above sea level.

Only a small part in the north-eastern part of the district is the lower Ranchi plateau, spread over Silli, Rahe, Sonahatu and Tamar CD blocks, at an elevation of 500 to 1,000 feet above sea level.

The principal river of the district, the Subarnarekha, originates near Ratu, flows in an easterly direction and descends from the plateau, with a drop of about 300 feet at Hundru Falls.

[6] Note: The map alongside presents some of the notable locations in the district.

[7] Subernrekha Hydel Power Station at Sikidiri, is a 130 MW (2x65 MW) hydel power plant of Jharkhand State Electricity Board.