Question

The depth of the Champion Reef mine is ________.
A.3117 m
B.3267 m
C.3217 m
D.3337 m

Answer 1

Hint: The Champion Reef Mines were the second deepest gold mining site in the world located in the state of Karnataka in India. The mining region was known as the Kolar Gold Fields as the nearest township, Kolar in Karnataka was located at a distance of 30 km from the mines. It covered a total area of 58 sq. km. The mines were closed in 2001 by the Government of India because of environmental and economic factors and the fall of gold prices in the market. In 1889, one of India's first power-generation units were built to support mining operations at the site. The mining site was also briefly used for partial physics experiments between 1960 and 1992.

Complete Answer:
Options A and B: are incorrect. Although the ballpark depth of the mines is between the two numbers, none of them is accurately correct.
Option C: is correct. The average depth of the mines were 3217 m or roughly 11,000 ft.
Option D: is incorrect. The depth of the mines was less than the given number.

So, the correct answer is option C.

Note: It was founded during 900 CE by the Western Ganga dynasty that ruled in the region. Later it came over to the Cholas during 1000 CE, then the Vijayanagara Empire during 1300 CE and finally under the Maratha Rule during the 17th century. After independence, the mines were nationalised in 1956 and operated by the Bharat Gold Mines Limited and since then over 900 tonnes of gold has been produced at the mines.