I think Possum Hollow Sportsmen Club has winter 3D's. I shoot in a 30 round small animal field target league and a Friday night dart league in Beaver County. The field target is shooting at dove and squirrel size targets up to coyotes and bobcats being the biggest at 20 yards. It can be very challenging because some of the ten rings are the size of a nickel and you can't see it from 20 yards and have to know the targets and pick a spot. I know some of the guys in my league shoot 3d's over the winter in northern Beaver County and I believe its at Possum Hollow.