They had arrived at the foot of the long mound.

A long, low mound of dirt stretched before him.

The boys started to flee, but stopped when they saw the long mound seem to split in half below!

There was a long mound, shoulder high, snaking away from the ice cliff.

A clod of earth rolled off one long mound.

And what is that odd, long mound over there on the left?

Chane led the way around one end of the long mound, then part way back along its opposite side.

Fifty feet away, a long gray mound, like an overturned boat, was rolling on the surface.

A Neolithic chambered tomb toward the east end of a long mound.

Piled against the far wall was a long broad mound of fallen leaves at least a foot high.