Midwest Citizens for Responsible Outdoor Lighting - MCROL

USDA Forest Service Class 1 Federal Areas - 1997 Study - West

Light Pollution Impact - Severe

Light Pollution Impact - Moderate

    Ansel Adams Wilderness Area Cabinet Mountains Wilderness Area Dome Land Wilderness Area
         
    Flat Tops Wilderness Area Galiuro Wilderness Area Gates of the Mtn Wilderness Area
         
    Glacier Peak Wilderness Area Goat Rocks Wilderness Area John Muir Wilderness Area
         
    Kaiser Wilderness Area Mission Mountain Wilderness Area Mokelumme Wilderness Area
         
    Mount Zirkel Wilderness Area Mountain Lakes Wilderness Area Pine Mountain Wilderness Area
         
    Rawah Wilderness Area San Rafael Wilderness Area Sycamore Canyon Wilderness Area
         
    Ventana Wilderness Area Wheeler Peak Wilderness Area White Mountain Wilderness Area
         

Light Pollution Impact - Slight

    Bob Marshall Wilderness Area Bridger Wilderness Area Caribou Wilderness Area
         
    Chiricahua Wilderness Area Diamond Peak Wilderness Area Eagle Cap Wilderness Area
         
    Emigrant Wilderness Area Fitzpatrick Wilderness Area Gearhart Mountain
    Wilderness Area
         
    Gila Wilderness Area Hells Canyon Wilderness Area Hoover Wilderness Area
         
    Jarbidge Wilderness Area Kalmiopsis Wilderness Area La Garita Wilderness Area
         
    Marble Mountain
    Wilderness Area
    Mount Adams Wilderness Area Mount Baldy Wilderness Area
         
    Mount Jefferson
    Wilderness Area
    Mount Washington
    Wilderness Area
    North Absaroka
    Wilderness Area
         
    Pasayten Wilderness Area San Pedro Parks Wilderness Area Sawtooth Wilderness Area
         
    Scapegoat Wilderness Area Selway-Bitterroot Wilderness Area Sierra Ancha Wilderness Area
         
     
    South Warner Wilderness Area Strawberry Mountain
    Wilderness Area
         
    Teton Wilderness Area Thousand Lakes Wilderness Area Three Sisters Wilderness Area
         
    Washakie Wilderness Area Weminuche Wilderness Area West Elk Wilderness Area
         
       
    Yolla-Bolly-Middle-Eel
    Wilderness Area
       
         

As a rough estimate - around Green you loose approximately half of the visible stars and around Orange you loose three-fourths. - Robert Wagner

  • Key and US Forecasted Growth
    These images were produced using the North American Night Sky Brightness Overlay and Google Earth.
    The list of 156 Mandatory Class 1 Federal Areas is available at the EPA Website.
    A map of Federal Class 1 Areas is available at the NPS Website.
    This site is maintained by Robert Wagner - of Kansas City, MO. Please contact me if you have any additional relevant information or corrections.