I know where a line of threes are close to me ,, I’ll go get some photos because ,, it’s the coolest thing. Sometime back , some ranchers had to have used some live trees as part of a post line .. the ranch is far gone , but there is a line of trees through this little Forrest with now 20-30 foot trees , they keep growing with the barbed wire notches in the bark .. used to be behind my house ,, I looked at these for years in amazement. Also a good place to harvest Turkey Tail shrooms