

Area of the National park is 1825 Sq. Km which include a core zone of 675 km2 and buffer zone of 1150 km2 . Majority of the core area lies in the Parahio catchment formed by five tributaries Khamengar, Debsa, Killung, Kocho and Kidul Chu or Minsar nala. The buffer zone includes the entire Pin watershed (including Parahio and Ensa) and upper part of Ratang Nala and extends east of the core area till the confluence of Pin and Spiti rivers.

Significance

Mammals
The top-predator of Pin Valley is the endangered snow leopard. Red fox and brown bear are co-predators of snow leopard in the landscape. Wolf is likely to be present in PVNP, however remains unconfirmed. Asiatic ibex is the large wild-ungulate in Pin Valley. Snow leopard is the top-predator of the Pin Valley. Owing to its large territory requirement and role as top-predator, snow leopard is the ‘flagship’ for conservation of the Indian Himalaya under the Environment ministry’s Project Snow Leopard. Retribution killing due to depredation on livestock, decline in prey populations and climate change are the primary threats to the snow leopard and its habitat. Developmental pressures are rapidly emerging across the snow leopard habitat. Himalayan brown bears are found between 3,000m and 5,000m inhabiting alpine meadows and pastures above the treeline in Jammy and Kashmir, Himachal Pradesh and Uttarakhand. Brown bears have a uniformly brown coat and unlike most other bears, they do not have any markings on their body. They are known to hibernate in winter, Himalayan brown bear is largely threatened due to persecution by herders to protect livestock. Extraction of fuel-wood and other non-timber forest products by humans and developmental activities continue to disturb brown bear habitat.
Brown bear is occasionally poached for their skin and gall-bladder. Ibex is one of the primary wild-prey of snow leopard, found in rugged and cliff-dominated areas above 3,000m altitude. In India, ibex occurs only in Jammu & Kashmir and Himachal Pradesh, no reported in areas east of the Sutlej River. Similar to bharal or blue sheep Pseudois nayaur, ibex also faces competition from domestic livestock, and is vulnerable to diseases transmitted from livestock. Ibex distribution range faces particularly high migratory livestock grazing pressure that has restricted ibex populations to sub-optimal habitat, rendering patchy distribution and low densities. Ibex, especially adult males, with huge sweeping horns, are hunted for trophy and meat. Ibex population monitoring is going on in Pin Valley since seven years to better understand long-term population dynamics. There are 200-250 ibex in Pin Valley with some variation in estimates across different years. Some of the key area for ibex in Pin Valley are Kin nala, Gechang- Kidul chu ridgeling, Kocho nala, slopes around Thango and Ensa Valley. During winter, ibex can be spotted near Gechang and Thango dogries, cliff opposite Tailing village on left bank of Pin river and around Mud village.
Wolf is an important predator in the Himalayas, co-occurring with the snow leopard. In addition to large ungulates, wolves prey upon smaller mammals, such as hare, marmot and pika, occasionally scavenging on snow leopard kills and garbage. A pack of wolf may have large home-range, traveling long distances in search of prey and shelter, usually hunting to open, rolling habitats. Retribution killing continues to be a major threat to wolf populations. Red fox is the most widespread Carnivore species globally, occurring usually above 2,000m altitude across the Himalayas. A wide variety of food, such as small rodents, other small mammals, insects, worms, eggs, birds, fruit, scavenging the remains of prey killed by larger carnivores and also household waste constitute diet of red fox. Red fox is seen around villages in Pin Valley. There hasn’t been any documentation of distribution and status of red fox population. Competition with feral dogs needs to be assessed as Pin Valley has considerable presence of dogs. PVNP is one of the ‘important bird areas’ in India with a rich diversity of birds. The national park has a good population of golden eagles owing to the steep mountainsides. Which provide ideal nesting sites for these raptors.
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Climate
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Topography & Soil
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Threats
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Eco Sensitive Zone for Pin Valley National Park
Climate
Pin Valley has sub-arctic and alpine climate conditions. Summer season is short (July-August), characterised by mild temperatures (maximum temperatures around 30 degree Celsius) and low rainfall. Winter (November-March is long with minimum temperature up to minus 40 degree Celsius and 300cm snowfall. Occasional rainfall occurs during summer season.
Topography & Soil
Pin Valley is formed by the Pir Panjal Range, an offshoot south of the main Himalayan axis. The area represents a cold-desert characterized by rugged cliff-dominated terrain. Altitude varies from about 3,450m (near confluence of Pin and Spiti rivers) to more than 6,000 in the Bara Shigri glacier area. Soil in Pin Valley is mostly silty-loam to silty-clay loam in texture with a slightly alkaline pH, poor organic matter and water holding capacity. The soil is low in available nitrogen, phosphorous, potassium and carbon, with relatively high calcium content.
Threats
Migratory livestock grazing was found to be widespread in Pin Valley. The high altitude pastures of Pin and Parahio valleys are grazed by livestock herders from neighbouring Rupi-Bhaba and Nichar areas of Kinnaur and Sarahan-Rampur area of upper Shimla District. Free-ranging dogs pose a direct threat to native wildlife through depredation on the chasing ibex, pika, voles and foxes. Large villages, such as Sagnam and Kungri, support considerable dog population. Monitoring and managing dog population is necessary in Pin valley to reduce impacts of this introduced predator on native fauna. Along with thi, managing garbage is needed to reduce human-subsidies to dog. In Sagnam, a garbage management program has been initiated. Pin Valley has a wide network of primary, secondary and tertiary roads, built under Pradhan Mantri Grameen Sadak Yojna and Public Works Department (PWD). Road primarily follows the Pin river and connects villages on both banks of the raiver. Road-head along Pin River is Mud, while road-head along Parahio River is Ka and Tyaha. Tractor-roads have been built connecting villages with dogris to carry crops, e.g. from tailing village to Ensa Dogri. While roads and infrastructure projects are necessary for development of these remote areas contiguous with international border, poor planning and implementation, and mismanagement of maintenance activities are some of the serious problems for wildlife conservation.
Eco Sensitive Zone for Pin Valley National Park
Draft Notification of Pin Valley ESZ Draft notification of eco sensitive zone around Pin Valley National Park was declared vide MINISTRY OF ENVIRONMENT, FOREST AND CLIMATE CHANGE NOTIFICATION S.O. 1053(E) dated 11th March, 2016 in exercise of the powers conferred by sub-section (1), read with clause (v) and clause (xiv) of sub-section (2) and sub- section (3) of section 3 of the Environment (Protection) Act, 1986 (29 of 1986) published, as required under sub-rule (3) of rule 5 of the Environment (Protection) Rules, 1986, for the information of the public likely to be affected thereby. The final notification of ESZ is under process.

Tourism
PVNP is popular among tourists, trekkers and mountaineers. There is high potential to develop an eco-tourism initiative to strengthen support of local community towards conservation management of PVNP. Pin-Bhaba and Pin-Parvati Passes, Ensa and Parahio valleys are important trekking routes. Certain peaks in the Parahio Valley, e.g. Kangla Tarbo, attract mountaineering expeditions. Eco-tourism activities may be restricted to the buffer zone of the PVNP.

Wild Rose (Rosa webbiana)

Littleleaf Cotoneaster (Cotoneaster microphyllus)

Twisted Knotweed (Aconogonum tortuosum)

False Tamarisk (Myricaria germanica)

Caper Bush (Capparis spinaosa L.)
Flora @ Pin Valley Wildlife Sanctuary
A total of 49 plant species, out of which 41 herb species were recorded in the study area belonging to 33 genera and 16 families. Polygonaceae was the richest family with the highest (6 species) number of individuals followed by Poaceae (5 species), Rosaceae (4 species) and Lamiaceae (4 species). Out of 49 plant species belonging to the 27 families, 24 species were used as fodder, 7 species were used for fuel wood, 5 species were used for other purposes by locals
