Below, a vast marsh had given way to prairie, which in turn became forested hills.

The remnant of this once vast tidal marsh is protected by the refuge.

There are also much wetland, vast marshes, and many areas that are subject to flooding.

At that time, the vast tidal marshes stretched over 5,700 acres (23 km).

He was sidestepping off the trail, heading down an embankment toward a vast and frozen marsh.

Although the park does not have the vast marshes and lakes characteristic of the rest of the region, water is nevertheless present everywhere here.

A vast marsh of reeds and quick- sand stretched across their path for as far as the eye could see.

Valley wetlands were once extensive, with meandering stream channels and vast seasonal marshes.

Mr. Hamud stopped, gazed over the vast, parched marsh and sighed.

The vast green marshes of the Meadowlands also contain Dumpsters and corpses.