Visibility Photographs
Web cameras are installed at a number of IMPROVE monitoring sites. Images from monitoring sites with over five years of data were selected to capture the range or "spectrum" of visual conditions at each site. You can click on the name of each site below to view its collection of images.
- Acadia National Park, Maine
- Badlands National Park, South Dakota
- Bandelier National Monument, New Mexico
- Big Bend National Park, Texas
- Boundary Waters Canoe Area, Minnesota
- Bridger Wilderness Area, Wyoming
- Bryce Canyon National Park, Utah
- Canyonlands National Park, Utah
- Cape Romain National Wildlife Refuge, South Carolina
- Chassahowitzka National Wildlife Refuge, Florida
- Chiricahua National Monument-Hatchett Peak, Arizona
- Chiricahua National Monument-Mica Mountain Vista, Arizona
- Crater Lake National Park-Mount Thielsen Vista, Oregon
- Crater Lake National Park-Palisade Point Park, Oregon
- Denali National Park, Alaska
- Dolly Sods Wilderness Area-Rich Mountain Vista, West Virginia
- Dolly Sods Wilderness Area-Weiss Knob Vista, West Virginia
- Edwin B. Forsythe National Wildlife Refuge, New Jersey
- Everglades National Park, Florida
- Glacier National Park, Montana
- Grand Canyon National Park, Arizona
- Great Basin National Park, Nevada
- Great Sand Dunes National Monument, Colorado
- Great Smoky Mountains National Park, Tennessee
- Guadalupe Mountains National Park, Texas
- Haleakala National Park, Hawaii
- Hawaii Volcanoes National Park, Hawaii
- Jarbidge Wilderness Area, Nevada/Idaho
- Lassen Volcanic National Park, California
- Lye Brook Wilderness Area, Vermont
- Mammoth Cave National Park, Kentucky
- Mesa Verde National Park, Colorado
- Mount Rainier National Park, Washington
- Okefenokee National Wildlife Refuge, Georgia
- Petrified Forest National Park, Arizona
- Pinnacles National Monument, California
- Point Reyes National Seashore, California
- Redwood National Park, California
- Rocky Mountain National Park, Colorado
- San Gorgonio Wilderness Area, California
- Shenandoah National Park, Virginia
- Tonto National Monument, Arizona
- Voyageurs National Park, Minnesota
- Weminuche Wilderness Area, Colorado
- Yellowstone National Park, Wyoming
- Yosemite National Park, California