Wallpaper «the dark background, stones, rocks, waterfall, cascade» from the «Nature» section in 3840x2160 (4К) resolution. JPG format, file size 3.8 MB. Author: uhd_4k, published on 10.12.2025. Main colors: black, dark khaki, brown, anthracite. The picture can be downloaded for free in any supported resolution and set as a desktop or phone background.