Karnataka, one of India's most geographically varied states, is a fascinating blend of coastlines, mountains, and plateaus. Here's a comprehensive look at what makes this southern state so unique.
Location & Extent
Karnataka lies between 11°30' and 18°30' North latitudes, situated on a tableland where the Western Ghats and Eastern Ghats converge in the western part of the Deccan Peninsular region. It stretches roughly 850 km from north to south and about 450 km from east to west.
Three Distinct Landscapes
The state is divided into three clear geomorphic zones:
- Karavali (Coastal Plains): A narrow coastal strip between the Western Ghats and the Arabian Sea, about 320 km long and 48–64 km wide, receiving moderate to high rainfall.
- Malenadu (Western Ghats): A mountain range running parallel to the Arabian Sea, averaging 900 m in height with some peaks exceeding 1,000 m.
- Bayalu Seeme (Deccan Plateau): The vast inland region with an average elevation of 650 m, relatively dry and semi-arid, dotted with ridges and granite boulders.
The highest point in the state is Mullayanagiri in Chikkamagaluru district, standing at 1,929 metres above sea level.
Rich Mineral Wealth
Karnataka is generously endowed with minerals including asbestos, bauxite, chromite, gold, iron ore, limestone, manganese, and silica sand, distributed fairly evenly across the state.
The state's two major gold mining centers — Kolar and Raichur — produce around 3,000 kg of gold annually, accounting for nearly 84% of India's total gold output. The Ballari-Hosapete region holds rich deposits of high-grade iron and manganese ores estimated at 1,000 million tonnes.
Water Resources
Karnataka accounts for about six percent of India's surface water resources. Seven river basins are formed by major rivers including the Godavari, Kaveri, Krishna, Penna, Ponniyar, and Palar — with the west-flowing rivers contributing about 60% of the state's inland water.
The state is also home to iconic waterfalls like Jog Falls, Shivanasamudra, Abbey Falls, and many more, making it a haven for nature lovers.
Climate & Rainfall
Karnataka experiences four seasons: winter (January–February), summer (March–May), monsoon (June–September), and post-monsoon (October–December). The highest ever recorded temperature was 45.6°C at Raichur on 23 May 1928, while the lowest was 2.8°C at Bidar on 16 December 1918.
The state is split into three rainfall zones:
- Coastal Karnataka (Uttara Kannada, Udupi, Dakshina Kannada) is drenched with an average of 3,638 mm of rain per year.
- North Interior Karnataka is an arid zone, receiving only about 711 mm annually.
- South Interior Karnataka, which includes Bengaluru and Mysuru, receives around 1,065 mm per year.
The southwest monsoon accounts for nearly 80% of the state's total rainfall.
Forests
Around 38,724 km² — about 20% of Karnataka's geographic area — is covered by forests, classified into reserved, protected, unclassed, village, and private forests. Karnataka is particularly known for its valuable teak and rosewood from the evergreen forests of the Western Ghats region.
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