Question: What county seat of Clark County, Kansas, is also north of the Cimarron Redoubt?
Sentence (from "C-Tran (Washington)"): The C-Tran (stylized as C-TRAN), more formally the Clark County Public Transit Benefit Area Authority, is a public transit agency serving Clark County, Washington, United States, including the cities of Battle Ground, Camas, Vancouver and Washougal.
Relevant evidence: No