Yellow, orange and red leaves contribute to the marvelous mountain landscape of Lanzhou, Gansu province. [Photo by Jin Feng for chinanews.com]

The Xinglong mountain in Lanzhou, capital of Northwest China's Gansu province has welcomed its most charming autumn season, in which a palette of colors can be seen everywhere.

The forests, canyons and plantations are all painted in varied colors, presenting picturesque scenes to visitors in late autumn.