Dehradun is located in the Doon Valley on the foothills of the Himalayas, uniquely positioned between two of India's most sacred and mighty rivers: the Ganges to the east and the Yamuna to the west. The city's geography is categorized by the transition zone between the plains and the high mountains, encompassing parts of the Terai and Bhabar regions.
The surrounding area features rich biodiversity, characterized by dense Sal forests, diverse flora, and abundant wildlife. The Rajaji National Park, bordering the city, is a testament to the region's lush ecosystem. Dehradun's location provides it with a microclimate that is noticeably milder and more temperate than the adjacent North Indian plains, making it geographically appealing for agriculture, forestry, and habitation.