The '''Flint Hills''' is a group of hills, mostly located in eastern [[Kansas]]. They are believed to have been formed by the [[erosion]] of [[limestone]] and [[shale]] during the [[Permian Period]] about 250 million years ago. <ref>[http://www.kgs.ku.edu/Extension/flinthills/flinthills.html] GeoKansas - Flint Hills</ref> The land is not particularly suited for farming, so tallgrass prairie makes up much of the Flint Hills. Many people want to preserve this, as it is one of the last remaining such areas in the [[United States]], and this has led to controversy as some developers want to build wind turbines in the Flint Hills. An example of an environmental activist group opposing this is Protect the Flint Hills. <ref>[http://www.protecttheflinthills.org/] Protect the Flint Hills</ref> | The '''Flint Hills''' is a group of hills, mostly located in eastern [[Kansas]]. They are believed to have been formed by the [[erosion]] of [[limestone]] and [[shale]] during the [[Permian Period]] about 250 million years ago. <ref>[http://www.kgs.ku.edu/Extension/flinthills/flinthills.html] GeoKansas - Flint Hills</ref> The land is not particularly suited for farming, so tallgrass prairie makes up much of the Flint Hills. Many people want to preserve this, as it is one of the last remaining such areas in the [[United States]], and this has led to controversy as some developers want to build wind turbines in the Flint Hills. An example of an environmental activist group opposing this is Protect the Flint Hills. <ref>[http://www.protecttheflinthills.org/] Protect the Flint Hills</ref> |