I have an old highway road on my property that I'm going to put a blind on. The legs are 4x4 posts. I was thinking of using those anchor pins for those metal carports to secure the legs to and drill into the asphalt. I'm not sure if that's the best thing to use though. It will probably be a 6x6 wood blind and 14 ft total height. It's on a ridge in the wide open subject to high winds.