Unit 535 is a general unit for whitetail and is located in central Montana, north of Roundup and south of Winnett. It is bounded by the Musselshell River on the south and east, and is mostly private land. The Big Snowy Mountains are located just to the north, while the Little Snowy Mountains are in the northwest corner of the unit. Whitetails can be found around the agriculture fields near the Musselshell River and Flatwillow Creek. Despite a population decline due to disease in 2012, overall harvest statistics for this unit are good.