Cochise is a ghost town located in Cochise County, Arizona, United States. Cochise County is a county located in the southeastern corner of the U The State of Arizona ( is a state located in the southwestern region of the United States. The United States of America —commonly referred to as the The city was created alongside the Southern Pacific Railroad in the 1880's. The city was primarily a stop for coal and water, necessities for trains at the time. At its peak, the town had a population of approximately 3,000 people. Today, only 50 people still live there but is home to several historic locations. [1] In 1899, Big Nose Kate, the famed sidekick of Doc Holliday, lived in Cochise while she was working at the Cochise Hotel after Holliday's death. Mary Katherine Horony ( November 7 1850 – November 2 1940) better known as " Big Nose Kate " and also known by aliases John Henry "Doc" Holliday ( August 14, 1852 &ndash November 8, 1887) was an American dentist The Cochise Hotel is a historic and functional hotel located in the Ghost town of Cochise in Southeastern Arizona. [2]