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The Fort Hays Limestone is a Stratigraphic unit#Member, member of the Niobrara Formation of the Colorado Group exposed in Colorado, Kansas, Nebraska, and South Dakota and is named for the bluffs near the old Fort Hays, a well-known landmark in western Kansas.
Defining the southeast border of the High Plains (United States), High Plains, the towering stone-capped bluffs of the commons:Fort Hays Escarpment, Fort Hays Escarpment are "perhaps the most conspicuous physiographic boundary in Kansas."
The Fort Hays Limestone was a generally practical building stone. However, it deteriorates when in contact with soil (note the repaired foundation on the Old Fort Hays Blockhouse). In contrast, the Fencepost limestone is quite durable in the ground, so, the Fencepost can be seen in foundation course of buildings that are otherwise faced with Fort Hays Limestone. Particularly in commons:File:St Josephs Church and Parochial School.JPG, Hays and commons:First Congregational Church (Ellis, Kansas), Ellis, where the Fort Hays and Fencepost outcrops are in close geographic proximity, the two limestones are seen in combination in buildings.
The Fort Hays Limestone was a generally practical building stone. However, it deteriorates when in contact with soil (note the repaired foundation on the Old Fort Hays Blockhouse). In contrast, the Fencepost limestone is quite durable in the ground, so, the Fencepost can be seen in foundation course of buildings that are otherwise faced with Fort Hays Limestone. Particularly in commons:File:St Josephs Church and Parochial School.JPG, Hays and commons:First Congregational Church (Ellis, Kansas), Ellis, where the Fort Hays and Fencepost outcrops are in close geographic proximity, the two limestones are seen in combination in buildings.
See also
* List of fossiliferous stratigraphic units in Colorado * List of fossiliferous stratigraphic units in Kansas * List of fossiliferous stratigraphic units in Nebraska * Paleontology in Colorado * Paleontology in Kansas * Paleontology in NebraskaReferences
Cretaceous Colorado Cretaceous Kansas Cretaceous Nebraska Geological members {{Cretaceous-stub