Go-astronomy logo


Dark Skies

2021 Global Dark Sky Directory

U.S. Dark sky sites by state

AL AK AZ AR CA CO CT DE FL GA HI ID IL IN IA KS KY LA ME MD MA MI MN MS MO MT NE NV NH NJ NM NY NC ND OH OK OR PA RI SC SD TN TX UT VT VA WA WV WI WY
US nighttime lights satellite image

2019 satellite image showing US nighttime lights. See full interactive map at Blue Marble Navigator


US Bortle light pollution map

2015 map showing US light pollution, based on Bortle scale/SQM data. See full interactive map at LightPollutionMap.info



U.S. Dark Sky Sanctuaries

These are the internationally-recognized dark-sky sanctuaries, reserves, and parks to visit for stargazing. The International Dark-Sky Association (IDA) vets these locations with a host of requirements. Bear in mind that there are LOTS of other locations that are dark as well, they just haven't been approved by the IDA (yet), which is a 2-3 year long process.

Sanctuaries & reserves are IDA-sanctioned sites that have the darkest skies for stargazing.

      1. Name/Type
      2. Location


    U.S. Dark Sky Parks

        1. Name/Type
        2. Location

      ^ TOP


      Dark Sky Sites Worldwide

      Worldwide light pollution map

      Dark Sky Sanctuaries & Reserves

      Sanctuaries are IDA-sanctioned locations that provide the darkest skies possible, with reserves being second.

          1. Name/Type
          2. Location
          1. Aotea
          2. Great Barrier Island New Zealand
          1. Rakiura
          2. Stewart Island New Zealand


        Dark Sky Parks

            1. Name/Type
            2. Location
            1. Eifel
            2. N. Rhine-Westphalia Germany
            1. Bukk
            2. Miskolc Hungary