SQM Installations in Missouri

A program to measure sky brightness in Missouri.

One-Year Loaner Installation Site:

Gateway Arch
  • Organization:  Gateway Arch National Park, St. Louis, MO
  • Site Manager:  Ranger Richard Fefferman
  • Website: www.nps.gov/jeff/index.htm
  • Missouri County: St. Louis City
  • Approved Date: October 19. 2020
  • SQM Location: Gateway Arch National Park, outdoor fence above North utility area
  • IDA Missouri Zone: Zone 2
  • Installation Date:  October 19, 2020
  • Status:  Not active (effective October 8, 2022)

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Our Mission

The mission of DarkSky Missouri is to raise awareness about light pollution issues in Missouri, promote quality outdoor lighting, protect our natural environment and our beautiful night sky, and educate the public how reducing light pollution can lower energy costs.