DENVER → PASSES → RESORT TOWNS / SELF-GUIDED BRANCH
Take your own road through Central Mountains & High Country.
Start from Denver / I-70 + US-285 if that is your natural launch, then let Frisco / Breckenridge / Buena Vista take over once you are in the region. Compare darkness, roads, camping, facilities and telescope setup before choosing the night.
Shared gateway stops
How this region overlaps ↗Chamberlin Observatory
Denver Astronomical Society's public home at the University of Denver, centered on the historic 1894 20-inch Clark refractor.
OPEN STOP ↗OVERLAP / GATEWAY STOPBoulder
A perfect Front Range entry point to the trail: use Fiske Planetarium and AstroTours.org for a cosmic tune-up before heading into Colorado's darker skies.
OPEN STOP ↗Pick a place deeper in the region
Want someone to guide the night? Switch branches ↗Frisco
A newly certified Dark Sky Community beside Dillon Reservoir, with mountain nightscapes, evening park access and a convenient Summit County base.
OPEN STOP ↗OFFICIAL TRAIL / International Dark Sky CommunityBreckenridge
Colorado's first certified dark-sky mountain resort community, with official visitor guidance for observing sites and astronomy activities.
OPEN STOP ↗OFFICIAL TRAIL / International Dark Sky ParkBrowns Canyon National Monument
Arkansas River canyon country where the official trail highlights Ruby Mountain and Hecla Junction for dark-sky viewing.
OPEN STOP ↗GUIDE ADDITION / Emerging Dark Sky state parkEleven Mile State Park
A South Park reservoir with 326 campsites and broad open country; ordinary park hours end at 10pm, making camping the clearest deep-night access model.
OPEN STOP ↗GUIDE ADDITION / Independent guide additionLoveland Pass
A dramatic high-elevation US 6 pass that can provide a mountain night-sky detour, but it remains an active highway subject to weather, traffic and temporary closures.
OPEN STOP ↗GUIDE ADDITION / Independent public-land observing areaMarshall Pass
A Continental Divide trailhead used by the Continental Divide Trail Coalition for its 2026 Colorado Dark Sky Party, with guided stargazing and hiking.
OPEN STOP ↗GUIDE ADDITION / Camping-based dark-sky destinationState Forest State Park
A 70,932-acre North Park state park with year-round camping, cabins and yurts; CPW explicitly includes stargazing among activities available from its yurt basecamps.
OPEN STOP ↗Let the road connect a few nights
All routes ↗Front Range to High Country
Start where the trip is easy, learn a little sky, then climb out of the Denver glow into mountain darkness.
TAKE THE ROUTE ↗ROAD ROUTE / Breckenridge → South Park → Browns Canyon → Valley View Hot Springs → Great Sand Dunes → Westcliffe → DenverSouth Park + San Luis Valley
Pick up where Route 1 leaves you in Breckenridge, cross Hoosier Pass into the huge high-country bowl of South Park, then follow the Arkansas Valley into the San Luis Valley before returning to Denver through Westcliffe.
TAKE THE ROUTE ↗ROAD ROUTE / Breckenridge → Frisco → Old Snowmass → Black Canyon of the Gunnison → Lake Fork Earth & Sky Center / SlumgullionWestern Slope Dark-Sky Loop
Branch west from Breckenridge through Frisco into the Roaring Fork Valley, cross into the Gunnison country for one of Colorado's strongest dark-sky national park stops, then finish high above Lake City at the Lake Fork Earth & Sky Center / Slumgullion.
TAKE THE ROUTE ↗Before the engine starts
Open the field manual ↗Look at the Moon
A dark new-Moon night and a moonlit mountain night are different experiences. Pick the one you want.
CHECK THE MOON ↗FIELD MANUALRead the horizon
Darkness is only one variable. Access, headlights, wind and an open horizon can matter just as much.
CHOOSE A SITE ↗FIELD MANUALPack the car
Colorado gets cold quickly after dark, especially at elevation. Bring the night you want to stay out for.
PACK THE NIGHT ↗