Uh...rock maple IS sugar maple...lol....same tree Cesar
![laugh :laugh:](http://www.primitivearcher.com/smf/Smileys/default/laugh.gif)
...other than what pat described for bark,the leafs are pretty easy to distinguish between one of the "soft" maples(red,silver,etc...) do your leaf search n find pics...hard maple is the only maple with a round between each lobe point on the leaf and has five points