Dark by design
Under a Bortle Class 2 sky, 18 minutes to the Great Sand Dunes National Park entrance.
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Colorado’s first DarkSky Approved Lodging property · approved April 2026 · Bortle Class 2 sky
The sky
Kosmos sits under some of the darkest skies in the U.S. In April 2026 it became Colorado’s first DarkSky Approved Lodging property, an approval for how the whole property is lit, so the sky stays dark for everyone under it.
The Bortle scale
Wild sky
Suburban
City
Kosmos is Class 2, the second darkest rating on the scale. Class 1 is the darkest sky on Earth; Class 9 is an inner-city sky.
The Kosmos experience
You arrive in daylight. Everything after that is built around the sky — including the buildings.
Check in, lose the road behind you, and watch the Sangre de Cristos turn gold from your villa.
Every villa has its own telescope. Set it up outside before the last light goes.
An astronomer walks you through what is overhead — planets, nebulae, and in season the core of the Milky Way.
Soak in the private indoor jacuzzi, then fall asleep inside the dome with the sky still overhead.
A self-sufficient retreat on 40 acres, bordered on the east and north by roughly 700 acres of conservation land restricted to sustainable use.
Villas built with sustainable hemplime and geodesic domes that open the room to the sky.
DarkSky Approved lighting keeps the property dark, so the stars stay bright for the whole valley.
Stay
Three private Stargazing Villas are open now.
Open now
A limited spa and gym arrive with Phase 2 as well — the “& Spa” in our name is what we are building toward, not something we claim to run today. See the Phase 2 plan
Book direct and a dedicated staff member is reachable by call or text at any hour of your stay.
Astronomer-guided tours
Open to visitors and villa guests alike. Resident astronomers Nerissa Valdez and Mark Cunningham lead small groups beneath Bortle Class 2 skies, 18 minutes from Great Sand Dunes National Park.
Open to everyone
$129 per adult and $99 per child. Look through professional telescopes with an astronomer beside you to answer every question. If clouds cancel your tour, you receive a full refund or a new date.
Included
Come as you are. We provide the equipment, the warmth and the guidance.
Guests say
The atmosphere is very peaceful. The villa, with its dome and skylight, was an inspiring place to spend time… We enjoyed the hot tub, stargazing with the telescope provided. I will definitely go back!
Even though the resort is in Phase 1 of development and operating completely 100% off-grid… What we loved most was the spectacular openness, absolute privacy, beautiful dark skies, and the gorgeous villas themselves.
This is a stargazer's dream! The houses were built with a very thoughtful design that made me think I was staying on another planet… Seeing the night sky without any light pollution is not something that I'd ever experienced.
Before you book
Yes — 100% off-grid. The Pre-Arrival Guide explains what that means for your stay.
The bright core is up from roughly March to October, best on moonless nights. Under a Bortle Class 2 sky the stars are there year-round.
About 18 minutes by car to the park entrance. Alamosa is about 25 minutes.
Yes. Astronomer-led tours are open to visitors. The Stargazing Tour is $129 per adult and $99 per child.
Per villa, per night: from $700 plus 11.9% lodging tax ($783.30). Sleeps 4, maximum capacity 7.
Getting here
Wild mustangs roam the valley beneath the snowcapped Sangre de Cristo Mountains, and the nearest town lights are far enough away to keep the sky dark.
The Kosmos journey
The land: 40 acres in the San Luis Valley, bordered on the east and north by roughly 700 acres of conservation land restricted to sustainable use.
Alamosa County issues the building permit.
The first guests check in to the Stargazing Villas.
Kosmos becomes Colorado’s first DarkSky Approved Lodging property.
Three Stargazing Villas are open today. A fourth villa and the Welcome & Astro Lounge are under construction.
