Yeah, some grow massive. There's a small mountain range not far from me The Pyrenees, township of Avoca right near it. Some huge ones there. Not nice to drive through though in high winds. Beautiful trees though and the old ones have lots of hollow's in them that the parrots nest in, as well as possums. Seriously bad in fires though as the oils in the leaves are flamable. In real hot weather you can smell the eucalyptus oils. As kids we'd go camping and get broken branches with semi dry leaves, hold them over the fire till they ignited, were like gum leaf sparklers. That's what makes our bush fires so bad. The tree tops just explode into flames.