The Denver Gazette quoted Martha Ferguson, the Old Snowmass resident who founded WildSky Old Snowmass: "Our intention is to safeguard the health of our residents and the survival of wildlife that depends on the dark of night." The certification recognized an adopted lighting code, while proposed overlay amendments followed a separate county process.
Old Snowmass is now a certified International Dark Sky Community in Colorado, joining Breckenridge, Westcliffe and Silver Cliff, Norwood, Nucla and Naturita, Ridgway, Crestone, and Paonia. DarkSky International, the nonprofit that runs the certification program founded in 2001, credits the designation to "an exceptional lighting ordinance" passed by Pitkin County alongside years of public education work by Ferguson's group and the Snowmass Capitol Creek Caucus. The county considered proposed amendments to the overlay district as recently as last November, including provisions relevant to property owners.
What the Certificate Actually Recognizes
DarkSky International's program doesn't hand out certification for scenery. It rewards documented policy: a lighting code on the books, an education plan, and evidence that a community intends to keep both current. Old Snowmass qualified on the strength of a countywide lighting code overlay specific to the Snowmass and Capitol Creek valleys, built through a partnership between Pitkin County and two local groups. The Snowmass Capitol Creek Caucus is the older of the two, an elected volunteer board recognized by the county back in November 1974 that advises commissioners directly on land use in the valley. WildSky Old Snowmass is a newer advocacy group founded by Ferguson, running presentations everywhere from the Rotary Club of Aspen to Colorado Mountain College's Spring Valley campus to the neighboring Woody Creek Caucus.
The certification puts Old Snowmass in company with Breckenridge, which became Colorado's first resort town to earn the distinction, and with a string of smaller, less-developed communities across the Western Slope and southern Colorado. That comparison matters more than it looks. Most of the state's dark sky communities are towns with almost no development pressure. Old Snowmass, by contrast, has spent the last several years absorbing a real influx of new residential construction, which is precisely why the lighting fight got complicated enough to need a second hearing.
The Code That Already Applies
Some of the rules are not up for debate. WildSky Old Snowmass's own public guidance is specific about what already runs afoul of the Pitkin County lighting code and the Caucus's Master Plan:
- Lights that shine in all directions rather than being shielded downward
- Upward-facing lighting aimed into trees
- Unshielded driveway lighting
- Extended holiday lighting left up beyond the season
Those provisions came out of the original countywide code update, the one DarkSky International's certification announcement points to directly. If you own property in the overlay area, that part of the rulebook is settled and enforceable now, not aspirational, according to Pitkin County.
The November 2025 Hearing on Proposed Amendments
A Citizen Portal report describes Pitkin County commissioners' November 5, 2025, hearing on proposed amendments to the Valleys of Capitol Creek and Lower Snowmass Creek Overlay District, a few months before DarkSky International announced the certification. The amendments were drafted by the Caucus with consultant Tim Malloy and included a residential cap of 5,750 square feet, along with standards for irrigation, native seed mixes, and night lighting. Planning and Zoning had already recommended it 4 to 0. The county commissioners moved it forward on first reading, but only after hours of debate over details that sound small until you're the one trying to build something.
Commissioners pushed for clarity on whether the irrigation language was meant to apply to large-scale hayfield flood irrigation or just residential landscaping near a house. Ned Andrews, the Caucus chair, told the board the intent was residential only, not a mandate to convert working agricultural systems. On lighting specifically, the Caucus had proposed stricter limits for recreational and event facility lighting, and commissioners asked for clearer definitions, including whether something as ordinary as a backyard pickleball court would fall under the new restrictions. Staff was also asked to make sure the housing language wouldn't accidentally block temporary construction housing or legitimate on-site employee housing tied to agricultural operations.
The board's own record framed a December 3 second reading as the fallback date if more time was needed to finish that language. The November 5, 2025 record showed that proposed amendments to the overlay district were still under consideration, including details relevant to property owners. Anyone weighing an exterior lighting project, a new sport court, or outbuilding construction in the overlay district should confirm the current, adopted language directly with Pitkin County rather than relying on the version summarized in certification coverage from earlier this year.
What This Looks Like on the Ground
None of this makes the designation less real. It makes it layered, which is a more accurate way to describe how land use actually works in a place like the Snowmass and Capitol Creek valleys, where a fifty-year-old citizen caucus, a five-year-old advocacy nonprofit, and county planning staff are all shaping the same overlay district at the same time. If you already live here, the practical takeaway isn't celebratory, it's procedural: the broad strokes of the lighting code are enforceable today.
The certification recognizes the community, while county rules set requirements for property owners.
How the Valley Marks the Night Sky
The community side of this has more texture than the regulatory side, and it's worth knowing if you're new to the valley. The Caucus's Annual Picnic and Star Party has been a fixture at Buttercup Ranch, drawing residents out for an evening that combines the neighborhood potluck instinct with actual astronomy. WildSky Old Snowmass keeps a running calendar of presentations well beyond that one event, from talks at the Carbondale Public Library on the updated lighting code to appearances before the Pitkin County Planning and Zoning Commission itself during the code's development. The group's own materials note that under dark enough conditions, the naked eye can pick out roughly 5,000 stars in a night sky, compared to fewer than 100 from a typical urban setting. That's the return on the adopted lighting code.
Old Snowmass earned its certification the hard way, through a lighting code that took years to draft and a citizen group willing to sit through zoning hearings most residents never see. The certification recognizes Old Snowmass's dark-sky work, while the county code and overlay amendments follow their own processes.
If you're an Old Snowmass property owner sorting out what the current overlay district actually allows, or you're weighing an exterior lighting or outbuilding project, Monica Viall has spent two decades tracking exactly this kind of Pitkin County land use detail across the valley. Schedule a consultation to talk through what applies to your parcel today.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
