Wild Horse Lake is a playa lake located in Texas County, Oklahoma

Texas County, Oklahoma

Texas County is a county located in the U.S. state of Oklahoma. Texas County was formed at Oklahoma statehood from the central one-third of "Old Beaver County" also known as "No Man's Land"...

. The lake was the location of the infamous Hay Meadow Massacre

Hay Meadow Massacre

The Hay Meadow Massacre, July 25, 1888, was the most violent event of the Stevens County, Kansas, county seat fight.In July 1888, Sam Robinson, the marshal of Hugoton and a group of men supporting Hugoton for the county seat planned an outing in No Man's Land just south of the county...

 (July 1888) in which one faction in the county seat fight

County seat war

A county seat war is a phenomenon that occurred in the American West as it was being settled, although incidences elsewhere, such as in West Virginia, have been also been recorded. As new towns sprang up and county lines were drawn, there was intense competition for the status and tax benefits...

 in Stevens County, Kansas

Stevens County, Kansas

Stevens County is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 5,724. Its county seat is Hugoton...

, killed four members of the opposing faction. Since the killings took place in what was then No Man's Land, no court had jurisdiction over the crime. The lake was also the subject of Oklahoma case law in reference to water appropriations—Depuy V. Hoeme (1980 OK 26, 611 P.2d 228).