She seems to be more down on that Imogene than a bow anchor on a mud flat.
Four eggs laid on a mud flat near the water's edge; no nest.
There is a mud flat in front, and hardly any one but ourselves knows the channel.
It will beach itself presently, on a mud flat, and can be recovered towards evening.
Clifford told Jack that they must "row the old tub back to Mud Flat," and ...