The 'Flint Hills', historically known as 'Bluestem Pastures', are a band of hills in eastern
Kansas stretching into north-central
Oklahoma, extending from
Marshall County in the north to
Chautauqua County, Kansas and
Osage County, Oklahoma in the south.
Description
The
World Wide Fund for Nature has designated the Flint Hills as an
ecoregion, distinct from other grasslands of the Great Plains.
[1] They were named by explorer
Zebulon Pike in 1806 for the cobbles of flint-like
chert that glinted through the tall prairie grasses.

Regions of Kansas and Oklahoma, showing the Flint Hills
The Flint Hills were created approximately 250 million years ago during the
Permian Period. During this time much of the
Midwest, including Kansas and Oklahoma, were covered with shallow seas. As a result, much of the Flint Hills are composed of
limestone and shale with plentiful fossils of prehistoric sea creatures. The most notable
layer of chert-bearing limestone is the Florence Limestone Member. It is approximately 45 feet thick; numerous roadcuts of the Florence Member are prominent along
Interstate 70 in
Riley County, Kansas. Many of the honey-colored
limestones have been used for building blocks. The non-chert-bearing limetones are best for this, since the chert is extremely hard to cut, but yet it can fracture quite easily.
Beginning in the mid-1800s homesteaders replaced the American Indians in the Flint Hills. Due to
chert in the soil, farming was not practical, and cattle ranching became the main agricultural activity in the region. Sparsely populated today, the Flint Hills contain most of the remaining
tallgrass prairie in the world
[ and have some of the largest cattle ranches in Kansas and Oklahoma. There are three official tallgrass prairie preserves in the Flint Hills, the largest of which, the Tallgrass Prairie Preserve, near Pawhuska, Oklahoma, also boasts one of the largest populations of bison in Oklahoma. The other preserves, both located in Kansas, are the Tallgrass Prairie National Preserve and the Konza Prairie.]
See also
★ Osage Hills
Notes
★ The largest town in the Flint Hills region is Manhattan, Kansas.
★ The Flint Hills Scenic Byway passes through the Flint Hills in Kansas.
★ William Least Heat-Moon wrote a tribute to the Flint Hills and the Kansans who live there in his book ''PrairyErth''.
References
1. WWF Ecoregions
External links
★ Flint Hills map and resources
★ National Geographic photo gallery
★ Kansas Flint Hills - Travel and Tourism Info and Resources