Bill Hoover, they are all season tires. This picture might give you an idea of the tread. This tire was on the Ford F250 at just over 50,000 miles.
I was a bit surprised how well the entire set wore since in that 70k miles I rotated them only once, at 33k miles according to my records.
I used to run Michelin and those are excellent tires but I found these BFG give me just as many miles, just as good a ride and traction, and cost less. That's just my experience, though. Others may have different experience.