UPDATE: Those these are branded Desert Dog II, they appear to be similar to the Desert Dog PCV.
These are located in Port Huron, Mi. I’ve never seen this style of Desert Dog Tire. Nor have I seen the “Desert Dog II” model. These must be very old, though the side walls still look good.
“2- 28/10 15″ Formula Desert Dog II tires. Good tread came off of sandrail.”