molehill

A small mound of loose earth raised by a burrowing mole.

(make a mountain out of a molehill) To exaggerate a minor problem.

A little hill, hillock, mound, or ridge of earth thrown up by moles in burrowing underground.

A little hillock of earth thrown up by moles working under ground; hence, a very small hill, or an insignificant obstacle or difficulty.

A small mound of earth created by a mole’s burrowing underneath the surface of the ground.

a mound of earth made by moles while burrowing