Geography of Himachal Pradesh

Overview

Himachal Pradesh, the "Land of Snow," is a mountainous state in the western Himalayas, carved out as a full state on 25 January 1971. Its geography directly shapes its climate, economy, and culture—making this a favourite topic in HP TET's Environmental Studies section. Questions typically test your knowledge of mountain ranges, river systems, district-wise features, and climatic zones.

Understanding HP's geography helps connect classroom EVS topics (water, travel, shelter, plants and animals) to the local context—exactly what NCF recommends. Expect 2–4 questions on physical features, rivers, and climate in the exam. Mastering the five major rivers and three physiographic zones is non-negotiable.

Key Concepts

• **Three Physiographic Zones**: HP is divided into the Outer Himalayas (Shivaliks), Inner/Lesser Himalayas (mid-mountains), and Greater Himalayas/Trans-Himalayas (Zanskar range in Lahaul-Spiti). Altitude increases as you move north.

• **Five Major Rivers**: Sutlej, Beas, Ravi, Chenab, and Yamuna—all originate from glaciers or high-altitude lakes and belong to the Indus system (except Yamuna, which joins the Ganga system).

• **Altitudinal Variation**: Elevations range from about 350 m (Una plains) to 6,816 m (Reo Purgyil peak). This variation creates multiple climatic zones within one state.

• **Monsoon Influence**: The southwest monsoon (June–September) brings 70–80% of annual rainfall. Districts like Kangra and Dharamshala receive heavy rainfall; Lahaul-Spiti remains a cold desert.

• **Rain-Shadow Effect**: Areas north of the Dhauladhar and Pir Panjal ranges receive scanty rainfall because moisture-laden winds are blocked by these ranges.

• **Glaciers as Water Towers**: Glaciers like Bara Shigri (Lahaul), Bhadal, and Parvati feed rivers year-round, crucial for hydropower and irrigation downstream.

• **District-River Association**: Each district is identified by its river valley—e.g., Kullu lies in Beas valley; Kinnaur along Sutlej; Chamba along Ravi.

Formulas / Key Facts

| Feature | Details | |---------|---------| | **Total Area** | 55,673 sq km (ranks 17th among Indian states) | | **Number of Districts** | 12 | | **State Capital** | Shimla (summer), Dharamshala (winter/second capital) | | **Highest Peak** | Reo Purgyil (6,816 m) in Kinnaur | | **Longest River in HP** | Sutlej (~320 km within HP) | | **Largest Glacier** | Bara Shigri (Lahaul-Spiti) | | **Coldest Inhabited Place** | Kibber (Spiti) at ~4,270 m | | **Wettest Area** | Dharamshala-Palampur belt (>3,000 mm annual rainfall) | | **Driest Area** | Lahaul-Spiti (<500 mm, cold desert) | | **Major Passes** | Rohtang (Kullu-Lahaul), Kunzum (Lahaul-Spiti), Jalori, Baralacha La |