One thing’s for certain...they are either part lab, or part golden retreiver. Possibly they have a little of both.
What isn’t clear is what is causing the pink pads, white markings on the face, and the black spots on the skin that doesn’t translate to black spots in the coat. There are so many breeds that have the white markings that it is futile to try to figure that one out. But judging that you are in a rural area, there is a good chance that the unknown blood line is from a hunting and/or hound type of dog. It could be: english pointer, fox hound, beagle, etc. the spots can come from one of the many bull type breeds. They often have black skin spots underneath the fur. English bulldog, boxer, pitbull, etc. Terriers also commonly have these hidden spots. I’m not completely sure on this, but I thing english pointers might have the hidden spots too.
So here’s my wilda$$ guess...part lab, part golden retreiver, part english pointer, and part pitbull. The lab and golden genes are the major portion of the dogs’ genetic makup, and the pointer and pitt are only slightly there.
The lady said they are Great Pyrenees. I learned a lot about them having never heard of them before today.