In Xinjiang Uygur Autonomous Region's Manas County, rising humidity and sharp temperature swings have draped the Taxihe National Forest Park in ethereal hoarfrost. Ice-crusted elms stand like ink-brush paintings – dark limbs veiled in silver, serene and spare. Formed in temperatures below minus 2 degrees Celsius with over 90 percent humidity and calm winds, the frost builds 40–60 millimeters thick, its loose, crystalline structure catching light like winter's own subtle palette.