How long do lost broadheads last

[Johnb317]

Ok,  so crazy question, but my partner shot at an elk and we never found the arrow 

I know the carbon arrows will never degrade, but I wonder how long a broadhead would stay sharp?   Would never want to step on one trekking through the woods.

[Brushcrawler]

I have found a couple of arrows in the woods on the OP that were clearly years old and the broad heads were still pretty sharp even after all that rain.

[Boss .300 winmag]

I have found a couple of arrows in the woods on the OP that were clearly years old and the broad heads were still pretty sharp even after all that rain.

 

[tritt007]

Ever see an old rusy piece of metal in the woods that has been there a long time lol ? Same idea , except some broadheads are made of better steel and can last even longer