Editing Harrison, Nebraska (section)

==Area attractions==
[[File:Entering Agate Fossil Beds National Monument.jpg|thumb|Entrance to [[Agate Fossil Beds National Monument]]]]
[[Agate Fossil Beds National Monument]], maintained by the [[National Park Service]], is 25 minutes south of Harrison on River Road, Nebraska State Route 29.  The site is best known for the large number of well-preserved [[Miocene]] [[mammal]] [[fossil]]s on display, which date from about 20 million years ago, and are among some of the best specimens of Miocene mammals.  The monument's museum collection also contains more than 500 items from the Cook Collection of [[Plains Indian]] artifacts, originally from the Agate Springs Ranch, a working cattle ranch, owned by Harold J. Cook.  The Cook Homestead (Bone Cabin Complex) is listed on the [[National Register of Historic Places]].<ref>{{cite web |url=http://www.nebraskahistory.org/histpres/nebraska/sioux.htm |title=Nebraska National Register Sites in Sioux County |publisher=Nebraska State Historical Society |accessdate=October 18, 2013 |archiveurl=https://web.archive.org/web/20131019133106/http://www.nebraskahistory.org/histpres/nebraska/sioux.htm |archivedate=October 19, 2013 |url-status=usurped }}</ref>   
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