The climate on Mount Heng shows distinct vertical variations, with an average temperature decrease rate of 0.59°C per 100 meters.

The forest coverage rate reaches 67%, with a rich distribution of rare plant and animal species.

In 1954, experts discovered two wild velvet soapberry trees in the primary secondary forest near Guangji Temple.

In 2004, law enforcement officers confiscated a long-eared owl in a farmers’ market; this species had been extinct in Hunan Province for over a decade, and it was caught on Mount Heng[6].

In 2013, a group of tourists spotted a silver pheasant, a nationally protected animal, in the Nanyue Mount Heng area[7].