Belle Fourche.

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

Bortle Scale
1
Best Regional Reading
Sky Quality
21.96
SQM Zenith Value
Verified Sites
0
Community Vetted
Dark Sky Parks
2
IDA Certified Nearby

Quick Guide for Belle Fourche

  • Top Community Pick: local vantage points (~N/A miles)
  • Best Scientific Reading: Bortle 3.0 at Joyner Ridge Parking
  • Local Experts: Yellowstone Valley Astronomy Association
  • Verified Observations: 0 distinct spots

If you’re looking to escape the light pollution of Belle Fourche, you’re in luck. While enthusiasts often gather at local vantage points for its accessibility, scientific audits conducted by the National Park Service at Joyner Ridge Parking provide the most accurate reading of the regional sky quality, measuring at a Bortle 3.0. The transition between the urban infrastructure of Belle Fourche and the more rural stretches of SD creates several ‘dark sky’ corridors.

The Best Times for Stargazing in Belle Fourche

For the best results in Belle Fourche, 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 Belle Fourche Observers

Before heading out to local vantage points, we recommend arriving during civil twilight to scout the terrain safely. 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.

Scientific Audit

NPS Sky Measurements

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

Joyner Ridge Parking

Devils Tower NM

21.64 SQM
Bortle Class 3

"Set up about 100 yds SE of Joyner Ridge parking along loop trail. Many people at the parking area and other sites doing astrophotography and enjoying the night sky. Mostly clear skies with good detail in the Milky Way, which was visible to the natural horizons in the north and blended in to the light dome of Gillette to the SW. Andromeda Galaxy easily visible with the naked eye. Some low clouds along the horizon somewhat capping the light domes of Gillette and Spearfish/Rapid City. SQM reading of 21.74"

Observation Date
9/7/2018
Elevation
1280m
Zenith Brightness
21.79

West Road

Devils Tower NM

21.96 SQM
Bortle Class 1

"Sky quality measurements were recorded at West Road in Devils Tower NM on 9/6/2005. The site demonstrated a scientific darkness reading of 21.96 SQM."

Observation Date
9/6/2005
Elevation
1297m
Zenith Brightness
21.58

International Dark Sky Parks

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

IDA Certified Distance: 99.9 miles

Medicine Rocks State Park

Medicine Rocks State Park is full of history, culture, unique topography, and wonderfully dark skies. The park is also a haven for wildlife. They host dark sky…

Category
International Dark Sky Sanctuary
Certified
2020
Land Area
1.4 km2
Coordinates
46.0444, -104.4713
IDA Certified Distance: 205.5 miles

Merritt Reservoir State Recreation Area

Merritt Reservoir State Recreation Area (SRA) is situated in the north-central portion of the state of Nebraska, United States – a region known for its vast…

Category
International Dark Sky Park
Certified
2022
Land Area
2.95 km2
Coordinates
42.6025, -100.8948

Local Astronomy Clubs

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

NASA Night Sky Club ID
#660

Yellowstone Valley Astronomy Association

Billings, MT

NASA Night Sky Club ID
#594

Cheyenne Astronomical Society

Cheyenne, WY