muddy,
I must have been thinking about duck hunting... sorry an old waterfowler never dies... Here is what is written under treestands... It is the screw in steps that can't be used...
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You may not construct a permanent tree
stand on state public hunting areas, or drive or in
any other way place any nail, spike, pin or any
other metal object into a tree on a state public
hunting area to construct a blind or to provide
hunting access to a location above the ground.