International Dark Sky Reserves ~ a public or private land possessing an exceptional or distinguished quality of starry nights and nocturnal environment that is specifically protected for its scientific, natural, educational, cultural, heritage and/or public enjoyment mission of a large peripheral area. The International Dark Sky Reserve consists of a core area meeting the minimum criteria for sky quality and natural darkness, and a peripheral area that supports dark sky values in the core and receives benefits from them as well. The International Dark Sky Reserve is formed through a partnership of multiple land owners and/or administrators that have recognized the value of the starry night through regulation and/or formal agreement and/or long term planning.

The IDSReserve program is the epitome of IDA's mission. Working to preserve a central core that is valuable because of its natural night, communities band together to create public awareness campaigns and conduct retrofits to restore the night sky. Each reserve shown below has gone above and beyond the requirements as stated in our International Dark Sky Reserve Guidelines.

Terms of Use

Terms of Use


International Dark-Sky Association images on this Web site may only
be used for noncommercial, educational purposes and must compliment
IDA's mission to preserve and protect our night skies through quality
outdoor lighting.

Images attributed to IDA must credited as such.

Images credited to anyone other than IDA may not be used without the
consent of the photographer.

Prohibited Uses:

  • Images from this Web site may not be used in any unflattering or
    derogatory manner.
  • It is prohibited to use any IDA image for commercial use.

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