Uttarakhand is a region of outstanding natural beauty. Most of the northern parts of the state are part of Greater Himalaya ranges, covered by the high Himalayan peaks and glaciers, while the lower foothills were densely forested till denuded by the British log merchants and forest contractors after independence. Recent efforts in forestation, however, have been successful in restoring the situation to some extent. The unique Himalayan ecosystem plays host to a large number of animals (including bharal, snow leopards, leopards and tigers), plants and rare herbs. Two of India's mightiest rivers, the Ganga and the Yamuna take birth in the glaciers of Uttarakhand, and are fed by myriad lakes, glacial melts and streams in the region.

Uttarakhand lies on the south slope of the mighty Himalaya range, and the climate and vegetation vary greatly with elevation, from glaciers at the highest elevations to tropical forests at the lower elevations. The highest elevations are covered by ice and bare rock. The Western Himalayan Alpine Shrub and Meadows ecoregion lies between 3000-3500 and 5000 meters elevation; tundra and alpine meadows cover the highest elevations, transitioning to Rhododendron-dominated shrublands below. The Western Himalayan subalpine conifer forests lie just below the tree line; at 3000-2600 meters elevation they transition to the Western Himalayan broadleaf forests, which lie in a belt from 2,600 to 1,500 meters elevation. Below 1500 meters elevation lies western end of the drier Terai-Duar savanna and grasslands belt, and the Upper Gangetic Plains moist deciduous forests. This belt is locally known as Bhabhar. These lowland forests have mostly been cleared for agriculture, but a few pockets remain.

Indian National Parks in Uttarakhand include the Jim Corbett National Park (the oldest national park of India) at Ramnagar in Nainital District, Valley of Flowers National Park and Nanda Devi National Park in Chamoli District, Rajaji National Park in Haridwar District, and Govind Pashu Vihar National Park and Gangotri National Park in Uttarkashi District.

• Total Geographical area: 51,125 km²
• Hill Area: 92.57%
• Plain Area: 7.43%
• Area Covered By Forest: 63%
• Location Longitude 77° 34' 27" East to 81° 02' 22" E
• Location Latitude 28° 53' 24" North to 31° 27' 50" N
• Villages: 15620
• Major Peaks (height in metres above sea level) Nanda Devi (7816), Kamet ( 7756), Badrinath (7140), Abi Gamin (7355), Chaukhamba (7138), Trishul (7120), Dunagiri (7066), Panchchuli ( 6910), Nanda Kot (6861), Gangotri (6614), Gauri Parvat (6590) ,Thalay Sagar(6904), Rishi Pahar(6997), Om Parvat (6191)
• Rivers Alaknanda, Bhageerathi, Bhilangana, Yamuna, Tons, Mandakini, Pindar, Ramganga, Kosi, Kali Ganga, Goriganga, Saryu ,Gaula, Nayar
• Major Passes Mana La (5450), Niti La (5070), Lipu Lekh pass ( 5122), Lumpia Dhura (5650)
• Glaciers: Dunagiri, Bandarpoonch, Khatling, Pindari, Milam, Ralam, SunderDhunga, Kafni, Gangotri
• Bugiyal Auli, Bedeni, Darma, Pandavkholi.
• Lakes Nainital, Bhimtal, Saattal, Naukuchiyatal, Nachiketatal, Yemkeshwartal, HemKund, Roopkund