Cut a piece of 2" flat stock about 2' long drilled some holes in it to screw lags into a tree and then drilled holes for the bear box.Bolted the box to the flat stock and to the tree and then bent the stock to the angle I wanted.I used my self-climber to get up in the tree and work from.Also put some eyebolts on the box and wrapped a bike cable around the tree and secured it with padlocks.
Mike