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Light pollution is the human-made alteration of outdoor light levels from those ocurring naturally. It has harmful effects on:

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Find a stunning night sky experience near you.
By Drew Reagan
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Sun Valley Resort invites guests to experience some of the darkest and most spectacular night skies in the American West.
Certified through DarkSky International’s DarkSky Approved Lodging & Resorts Program, the resort combines responsible outdoor lighting with breathtaking alpine scenery, creating unforgettable opportunities for stargazing, nighttime recreation, and wellness beneath star-filled skies. Located on the edge of the internationally recognized Central Idaho Dark Sky Reserve, visitors can explore everything from panoramic views atop Bald Mountain to the peaceful meadows of Trail Creek and the remarkably dark skies of nearby Galena Summit.
Beyond world-class skiing, hiking, biking, fly fishing, and cultural events, Sun Valley is expanding its dark sky experiences with guided stargazing programs, astronomy events, and educational offerings that invite guests to discover the beauty of the night. Whether you’re watching the Milky Way emerge above the mountains or simply enjoying an evening under naturally dark skies, Sun Valley offers a rare opportunity to reconnect with nature after sunset.
1 Sun Valley Road E.
Sun Valley, Idaho 83353
United States
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Sun Valley
[email protected]
2026
DarkSky Approved Lodging & Resorts is overnight visitor accommodation with exceptional or distinguished quality starry nights and a nighttime environment preserved through on-site DarkSky Approved Lighting. They include camps, seasonal campgrounds, hotels and resorts, retreat centers, properties promoting ecotourism, and astrotourism lodges that are located in dark sky locations. All locations go through a rigorous review and certification process, including regular reporting and periodic recertification.