Union Pacific Railway Sun Valley Idaho Ski USAOriginal vintage winter sport and ski travel poster Union Pacific's Sun Valley Idaho featuring illustrations of a smiling lady as an ice maiden wearing a sparkling dress with a fur hat and boots dancing and creating snowflakes and orbs of light with her hand and a wand against the dark blue background, her skirt becoming the top of a snowy mountain slope with skiers skiing down to an ice skater on a frozen lake and huskies pulling a sledge in front of