This The Mentalist screencap contains
chuck wagon.
There might also be
covered wagon, conestoga wagon, conestoga, prairie wagon, prairie schooner, bridle path, bridle road, horse wrangler, and wrangler.
The Mentalist 6x12 "The Golden Hammer" -- Jane and the FBI investigate the murder of a high-tech cartographer who may have unearthed a spy ring before his death...