The correct answer is option 1 - Mines of Gold. Kolar, located in the state of Karnataka, is famous for its gold mines. The region has a long history of gold mining, with evidence of mining activities dating back to ancient times. The Kolar Gold Fields (KGF) in Kolar district were once one of the largest gold mines in the world. Gold mining in Kolar played a significant role in India`s gold production, and the region was known for its rich veins of gold ore. Over the years, various technologies and methods were employed for extracting gold from the mines in Kolar. However, it is important to note that gold mining in Kolar has significantly declined in recent years due to various factors like economic feasibility and environmental concerns. Nonetheless, the mining history and legacy of Kolar make it renowned for its gold mines.