Which one of the following is the highest altitude zoo in the world?

The Padmaja Naidu Himalayan Zoological Park (PNHZ Park), located in Darjeeling, West Bengal, is recognized as the highest altitude zoo in India and one of the highest in the world [1]. Established in 1958, it is situated at an average altitude of approximately 7,000 feet (2,134 to 2,150 meters) above sea level [1]. The park specializes in the conservation and breeding of endangered Eastern Himalayan fauna, including the Red Panda and Snow Leopard [1]. While other high-altitude zoos exist, such as the Pandit G.B. Pant High Altitude Zoo in Nainital (approx. 2,100 meters) and the Himalayan Zoological Park in Gangtok (approx. 1,780 meters), PNHZ Park is widely cited in official records and international associations like WAZA as the premier high-altitude zoological facility in the region [1]. Cheyenne Mountain Zoo in the US is also high (approx. 2,072 meters) but lower than PNHZ Park.

Sources

1. [1] https://en.wikipedia.org/wiki/Padmaja_Naidu_Himalayan_Zoological_Park