Estes Park.

The definitive guide to dark skies and celestial observation in Estes Park, CO. Verified using National Park Service and NASA Night Sky Network Clubs data.

Bortle Scale
4
Best Regional Reading
Sky Quality
21.58
SQM Zenith Value
Verified Sites
5
Community Vetted
Dark Sky Parks
2
IDA Certified Nearby

Quick Guide for Estes Park

  • Top Community Pick: Rocky Mountain National Park (~1.5 miles)
  • Best Scientific Reading: Bortle 3 at Rainbow Curve
  • Local Experts: Estes Valley Astronomical Society
  • Verified Observations: 5 distinct spots

Stargazing in Estes Park is surprisingly rewarding if you know exactly where to set up your tripod. While enthusiasts often gather at Rocky Mountain National Park for its accessibility, scientific audits conducted by the National Park Service at Rainbow Curve provide the most accurate reading of the regional sky quality, measuring at a Bortle 3. Atmospheric stability in the Estes Park region is often influenced by local topography, which can help settle the air for high-magnification viewing.

The Best Times for Stargazing in Estes Park

For the best results in Estes Park, aim for a ‘New Moon’ window. In these dark-sky conditions, the absence of moonlight allows the Milky Way to cast visible shadows.

Expert Tips for Estes Park Observers

When visiting Rocky Mountain National Park, remember to check if the gates close at sunset or if a night-use permit is required. A medium-aperture telescope is ideal for resolving the rings of Saturn and bright star clusters here. Local enthusiasts often frequent this spot, making it a great place to meet experienced observers. Regardless of your gear, allow 30 minutes for your eyes to fully dark-adapt.

Local Top Spots

Community-vetted locations known for clear horizons and accessibility for telescopes and astrophotography.

Premier Verified Hub Confidence: 87.5%

Rocky Mountain National Park

1.5 mi
Distance

" Dress for winter temperatures (heavy coat, gloves, hat)' "

Estes Park, CO 80517
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Premier Verified Hub Confidence: 100%

Horsetooth Mtn Open Space

27.8 mi
Distance

" 'Dress for temperatures ~20F colder than forecast low for the night. If you need a flashlight, please cover it with red cellophane.' "

Fort Collins, CO 80526
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Premier Verified Hub Confidence: 85%

RMNP Park&Ride

0.5 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Estes Park, CO 80517
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Premier Verified Hub Confidence: 85%

RMNP Discovery Ctr

0.5 mi
Distance

" Dress for winter temperatures (heavy coat, gloves, hat)', 'It gets COLD once the sun sets. Dress for winter temperatures (heavy coat, gloves, hat)' "

Estes Park, CO 80517
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Active Viewing Spot Confidence: 80%

Hermit Park

3.6 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Estes Park, CO NaN
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Scientific Audit

NPS Sky Measurements

Instrumented readings from the National Park Service Night Sky Program, providing the most accurate SQM and Bortle classifications.

Rainbow Curve

Rocky Mountain NP

21.56 SQM
Bortle Class 3

"Sky quality measurements were recorded at Rainbow Curve in Rocky Mountain NP on 9/4/2008. The site demonstrated a scientific darkness reading of 21.56 SQM."

Observation Date
9/4/2008
Elevation
3310m
Zenith Brightness
21.86

Rainbow Curve

Rocky Mountain NP

21.58 SQM
Bortle Class 4

"Simultaneous data collection with Kate Magargal. Sky is slightly brighter than previous data collection nights, but transparency was excellent allowing 7.0 limiting magnitude. Some haze to east and some very thin clouds retreating to the NE, but by second data set they appear to be diminished. Minor airglow present. Estes Park is not as bright or obvious this night due to better air clarity. Laramie, WY is barely visible to north."

Observation Date
9/24/2008
Elevation
3310m
Zenith Brightness
21.85

International Dark Sky Parks

Premier locations certified for their exceptional dark sky quality and commitment to light pollution mitigation.

IDA Certified Distance: 66.4 miles

Town of Breckenridge, Colorado

The Town of Breckenridge sits at 9,603 feet above sea level in Colorado’s Rocky Mountains, just west of the Continental Divide…

Category
International Dark Sky Community
Certified
2025
Land Area
15.66 km²
Coordinates
39.4983, -106.0482
IDA Certified Distance: 75.9 miles

Jackson Lake State Park

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​This park is an “Oasis in the Plains,” for swimming, boating, fishing and waterskiing. But that’s not all…

Category
International Dark Sky Park
Certified
2020
Land Area
13.2 km2
Coordinates
40.3813, -104.0799

Local Astronomy Clubs

Connect with experts and fellow enthusiasts through local astronomical societies and community groups.

NASA Night Sky Club ID
#319

Estes Valley Astronomical Society

Estes Park, CO

NASA Night Sky Club ID
#261

Longmont Astronomical Society

Longmont, CO