Just before dawn, I let myself in through one of the cattle gates in the Tallgrass Prairie National Preserve, an hour's drive north of Wichita, Kan. These fences, maintained by the National Park ...

It's easy to envision the world that pioneers encountered while looking at a herd of bison grazing at Tallgrass Prairie National Preserve in east-central Kansas. Little has changed over the decades on ...

MANHATTAN – The Flint Hills make a visual statement that is unlike anyplace else: wide swaths of open prairie stretching over short, steep hills unbroken by trees and shrubs. In late summer and fall, ...

Researchers analyzed accounts of historic tallgrass prairie fires in eight Midwestern states. Map of the central U.S., with blue-green, dark green and light green zones demarcating the original extent ...

Wildflowers bloom on a grassland near Manhattan, the Konza Prairie Biological Station. Some trees can be seen in the distance. Keeping trees and shrubs at bay is part of prairie conservation. Kansas ...

An 11-year-old boy staying with his grandmother for the summer in Tucson, Ariz., logs in to learn about animals that live on the largest prairie operated by the U.S. Forest Service in Illinois. Across ...