PistenBully snow groomer working at night in the Dolomites, Italy, under a starry sky, with snow tracks visible

pistenbully snow groomer dolomites italy night starry sky snow tracks winter alpine snow maintenance grooming snowscape mountain equipment tracked vehicle winter service nocturnal outdoor cold ski resort snow preparation alps italian alps night work sports resort maintenance snowcat ski slope slope preparation machinery industrial vehicle winter night heavy equipment resort operation management starlight winter scene industry alpine equipment ski season mountainous vehicle slope grooming pisten track pattern pattern service utility vehicle