Green forests transform into bright autumnal hues across Zengjia Mountain Scenic Spot in Guangyuan, Sichuan province. [Photo provided by Guangyuan city]

Autumn in Zengjia Mountain Scenic Spot in Guangyuan, Sichuan province, is the best season to enjoy some spectacular scenery of colorful leaves.

Zengjia Mountain, which is known as a "Natural Oxygen Bar" and "National Top Ten Red Leaf Viewing Sites", has long been known for its rustic views and well-preserved forests.

The 10,000-acre virgin forest brandishes gold, orange and reddish hues at an average altitude of 1,460 meters. The forest coverage rate here is as high as 74 percent, with populations of larch and wild maple creating an enchanting and ethereal atmosphere.

Notably, the forest patch in Yuanyangchi Park attracts the most visitors. The plants are accented by 15km long karst cliffs.