expanse

Kim Novak runs away from James Stewart, across an expanse of field.

The party sequence in Notorious begins with a wide shot from high above the top of the stairs, all glittering expanse below.

Tokyo Bay is “a black expanse where gulls wheeled above drifting shoals of white Styrofoam.”

Using UpToDate as the ur-text, though, gets into a vast expanse of gray zone, with some assertions evidence-based but many not.

To the north lay the wide expanse of Samburu land, and its mighty Ewaso Ngiro river.

When it cleared, the valley was a solid expanse of white, and the stars shone out as if in an Arctic sky.

The expanse, apparently so limitless, open to her view, invited her fancy to a range equally boundless.

Here a palace with low portals extended its ponderous expanse; it was the palace of King Loc.

This in turn will go through its process of retreat until the former expanse of waters disappears.

What more natural term, then, to apply to a spot of land standing alone in the midst of an expanse of water than an eye of land?