1.   She left a trail of muddy footprints behind her.

2.   He walked into the kitchen with his boots on, making muddy footprints on the floor.

3.   He got down on his hands and knees and tried to rub out the muddy footprints.

4.   At the edge of a small stream, a weasel had left muddy footprints where it climbed the snowy bank.

5.   Having established the primacy of the frontier in American politics, his supporters crowded into the White House to celebrate, leaving muddy footprints on the chairs and carpets.

6.   Troops tracked the rebels by following their muddy footprints in the jungle.