"Charlie's Ruts": Santa Fe Trail ruts, visible at historical-marker pulloff on U.S. Highway 50/400 between Lakin and Deerfield in Kearny County, Kansas. The have formed swales, which run generally northeast-southwest; the camera is facing obliquely north-northeast across them. The two parallel bands of light-colored vegetation are high ground between ruts, where the grass is short; the vegetation is taller and appears somewhat darker in the swales.