For some reason, the writers, artists and editors of Superman found this image of the Man of Steel cutting down trees compelling:
There are quite a few more examples and I will add them as I find them. Here's an early one from Adventure #184:
The earliest one I've found so far is this one from Adventure #110, although it's somewhat different from the others in that Superman hurls a spinning circular saw at the trees:
Either way, it's apparent that Kal-El would not find himself welcome at a meeting of the Earth Liberation Front.
Update: Bryon in the comments points us to this dueling lumberjacks panel from Superman #199:
Update II: Another example from Superboy #106, pointed out in the comments by Dave: