I think the posts around here are made primarily of locust and osage orange. Some look like they are 70+ and I still can't make a dent in them. Amazing.

I'm going to try a few smaller locusts [35'] this fall that I ringed last Spring. I'm sure I'll bury a few thorns into my legs and will call it a day, but you know me, gotta throw stupid at it a few times to see it will wake up.

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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