Dark Sky Month June 2021

Governor Jared Polis declared June 2021 as “Dark Sky Month” in Colorado. “With the State’s ever-growing population, the commitment to protecting and preserving our natural nights and landscapes from excessive light pollution and trespass is as important now as ever. A special thanks to Governor Polis and his staff for their efforts in helping to …

Dark Sky Month June 2021 Read More »

Measuring Skyglow Over the Front Range

IDA Colorado members and others are working to find new approaches to measuring skyglow where our problem is greatest, the Front Range Urban Corridor, along a line from Pueblo, through Denver, and north to Fort Collins.  Airplane flights are being used to capture skyglow images from about 3000 feet above ground level.  The National Park …

Measuring Skyglow Over the Front Range Read More »

Bird Migration Update (April 2021)

Spring bird migration season is here!  In Colorado the peak of spring migration is in early May.  Studies show that huge numbers of birds fly on just a few nights.  Colorado State University’s bird migration forecast can predict migration activity levels one, two, or three days in advance.  Watch for alerts at, and see …

Bird Migration Update (April 2021) Read More »

Dark Sky Dashboard Re-launched

The Western Night Skies Council has re-launched the “Western Dark Sky Dashboard.” The new version covers all of the Western United States including Colorado, Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.  The Dashboard highlights all of the officially-recognized International Dark Sky Places in the Western U.S.  The Dashboard is meant …

Dark Sky Dashboard Re-launched Read More »

Slumgullion Center is Named a Dark Sky Park

The International Dark-sky Association recognized the 58-acre Slumgullion Center as an International Dark Sky Park.   The Slumgullion Center is in Hinsdale County, near Lake City.  Camille Richard was the head writer for the application.  Local photographer Michael Underwood and amateur astronomer Phillip Virden assisted. “We are blessed . . . to have extraordinary dark …

Slumgullion Center is Named a Dark Sky Park Read More »

CBS Denver features Colorado’s Dark Sky Places

CBS Denver featured a description of Colorado’s dark sky places. Colorado Dark Sky ParksBlack Canyon of the Gunnison National ParkDinosaur National MonumentGreat Sand Dunes National Park & PreserveHovenweep National MonumentJackson Lake State Park Colorado Dark Sky CommunitiesNorwoodRidgwayWestcliffe & Silver Cliff Congratulations to all involved in helping recognize these places.  CBS Denver story