McCullough Peaks is a peak in Wyoming.
The McCullough Peaks are a prominent expanse of badlands outside of Cody that is home to many interesting erosional formations and also a herd of wild horses. The area is managed by the BLM and can be reached via the McCullough Peaks road which goes north from the Greybull Highway to the radio towers as well as several other dirt roads described below.
To see the wild horses, pull off onto one of two access roads (dirt tracks) on the north side of US Highway 14/20/16. The first, an unnamed road, is near mile marker 72 and has a lever-latching barbed wire gate you will have to open and close when entering and leaving the access road. The second access road (Whistle Creek Road) is near mile marker 74. No gate here, just a cattle guard, and there is also a small kiosk with some information about the horse management area. The BLM maintains an information with maps and other information here: blm.gov/wy/st/en/field_offices/Cody/wh.html