Anaconda.

The definitive guide to dark skies and celestial observation in Anaconda, MT. 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 Anaconda

  • Top Community Pick: Blue Mountain Observatory (~74.3 miles)
  • Best Scientific Reading: Bortle 2.0 at nimí·pu· Camp
  • Local Experts: Helena Astronomical Society
  • Verified Observations: 5 distinct spots

If you’re looking to escape the light pollution of Anaconda, you’re in luck. While enthusiasts often gather at Blue Mountain Observatory for its accessibility, scientific audits conducted by the National Park Service at nimí·pu· Camp provide the most accurate reading of the regional sky quality, measuring at a Bortle 2.0. Atmospheric stability in the Anaconda region is often influenced by local topography, which can help settle the air for high-magnification viewing.

The Best Times for Stargazing in Anaconda

For the best results in Anaconda, 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 Anaconda Observers

Because Blue Mountain Observatory is a developed site, it often features established viewing pads and specialized equipment. For the best views here, try to observe targets when they are highest in the sky to minimize atmospheric interference. 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: 90%

Blue Mountain Observatory

74.3 mi
Distance

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

Missoula, MT 59847
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Active Viewing Spot Confidence: 80%

Montana WILD

60.6 mi
Distance

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

Helena, MT 59601
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Active Viewing Spot Confidence: 65%

Missoula Public Library

71.1 mi
Distance

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

Missoula, MT 59802
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Community Gathering Point Confidence: 55%

UM Planetarium - Payne Family Native American Center

71.2 mi
Distance

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

Missoula, MT 59812
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Community Gathering Point Confidence: 52.5%

Sieben property

69.4 mi
Distance

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

Helena Valley Northeast, MT 59602
Get Directions
Scientific Audit

NPS Sky Measurements

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

nimí·pu· Camp

Big Hole NB

21.41 SQM
Bortle Class 2

"Set up camera equipment on the trail to the camp. Clouds in the afternoon all cleared out by 9:00 pm, though it appeared as if some fire smoke moved through the northern horizon later in the night. Excellent night sky viewing from this park, rivaling sites on the Colorado Plateau. A single yard light on a ranch building 2.5 miles north was bothersome, otherwise no visible lights seen from this location. A very faint light dome from Butte (60 miles distant) and nothing apparent from Wisdom, the nearest community (9 miles). Very fine detail visble in the Milky Way, with the Prancing Horse easily seen and the dust lanes in great detail. Stars are visible to the horizon in the south. Saw limiting magnitude star of 7.2 in Draco. Mars and Jupiter very bright to the SE and SW."

Observation Date
7/8/2018
Elevation
1884m
Zenith Brightness
21.4

Lower Madison River

Yellowstone NP

21.58 SQM
Bortle Class 4

"Evening started out with widespread thunderstorms, which slowly dissipated through the night until skies were almost cloud free. The light dome of West Yellowstone (only 1.5 miles to the west) is very prominent and dominates the western horizon. Bozeman is barely visible to the north, likely due to low clouds in the distance. Even with the bright lights of West Yellowstone, you can see some good detail in the Milky Way before it becomes obscured by the light dome."

Observation Date
8/11/2013
Elevation
2012m
Zenith Brightness
21.83

International Dark Sky Parks

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

IDA Certified Distance: 170.7 miles

Lost Trail National Wildlife Refuge

The Lost Trail National Wildlife Refuge is located in Pleasant Valley, nestled in the Salish Mountains of northwestern Montana, United States.

Category
International Dark Sky Sanctuary
Certified
2022
Land Area
37.3 km2
Coordinates
48.1892, -114.9123
IDA Certified Distance: 176.3 miles

Ketchum, Idaho

The City of Ketchum is a municipality of about 2,750 inhabitants situated at an elevation of 1,784 m in the Wood River Valley of central Idaho, U.S.

Category
Dark Sky Community
Certified
2017
Land Area
8.4 km2
Coordinates
43.6807, -114.3637

Local Astronomy Clubs

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

NASA Night Sky Club ID
#309

Helena Astronomical Society

Helena, MT

NASA Night Sky Club ID
#593

Western Montana Astronomical Association

Missoula, MT