1.   And across dirt tracks that Palestinians used to bypass the bulwarks, the army had heaped mounds of rocks and earth.

2.   He chose a dead drop in Warsaw, but when a U.S diplomat arrived to pick it up, snow trucks had heaped mounds of snow over the dispatch.

3.   Then they heaped mounds of mud onto the bank.

4.   There are windmills with heaping mounds of prickly pear nearby, with yellow flowers and gnarled mesquites.