It wasn't sand at all any more, but a kind of heavy mud.

The heavy mud was already lapping in to replace it.

He brushed some of the heavy mud from his cloak.

To reach the border, I trudge in heavy mud across a field of sunflowers.

It is not designed for heavy mud trails.

Figure 4 shows a barrier being tested by replacing the heavy mud above it with lighter seawater.

It takes heavy mud inserted at the bottom to regain control when pressures are this high.

The heavy mud washed off his boots and his feet grew lighter.

Harry went through heavy mud and orange trees.

"We leave one arm free," the therapist said, covering my other arm with four to five inches of very hot, heavy mud.