Doon Valley

Within the valley lies the city of Dehradun, the winter capital of Uttarakhand state.

It is bounded on all sides by mountains, with northern range running from Kalsi in the west to Muni Ki Reti in the east with Mussoorie at the centre in a semi-circular arc; and southern range running at south from Paonta Sahib in the west to Haridwar in the east.

Sal or Shorea robusta, and Teak), flowering and fruiting trees, natural wetlands, and Terai and Bhabar ecosystems.

Several rivers (e.g. Song, Tons, Suswa, Jakhan, Rispana and Asan) and a number of lesser streams flow through the valley, having their sources in either the Mussoorie Hills or the Sivalik Hills; all local rivers ultimately flow into either the Ganges or the Yamuna.

Other than Rajaji National Park, the local protected areas include Asan Barrage Conservation Reserve and Jhilmil Jheel Conservation Reserve, with the 1000-acre campus of the Forest Research Institute in Dehradun representing another Important Bird Area (IBA).