Today's Daily Brain Teaser (Nov 02, 2014)

A Roaring Call



I run forever,

With a roaring call.

Yet I have no throat,

Or any legs at all.



Rock wears away,

Whilst I grow.

You try to race me,

And receive a blow.



What am I?





Check Braingle.com for the answer.

from Braingle's Teasers http://ift.tt/1fYO2jw

via 3d wooden brain teasers from craftypuzzles.com