It was a long, grueling slog through knee-deep mud and stagnant water.

Villagers in higher areas were scooping knee-deep mud from their homes.

The road to this town, treacherous and narrow, ends after miles of knee-deep mud on a mountain path that looks down upon the clouds.

Outside was knee-deep mud that smelled of sewer and reclamation algae.

Those thoughts quickly faded away when Ishmael sank into the knee-deep mud along the shore of the river.

Lifting that first foot was like pulling it out of knee-deep mud, the second staggering step no easier.

A fine idea provided you aren't attempting your escape in knee-deep mud.

Rescue workers had to wade through knee-deep mud and cut away thick underbrush to reach the crash site.

And now the Afghan winter has arrived, with a cold rain turning dirt roads into knee-deep mud.

Others were captured without their boots, trying to escape but stuck in the knee-deep mud of the communication trenches.