The sun broke through the clouds and shone upon a vast, undulating white plain.

"Over the undulating plains, where these great beds occur, nothing else can live," he observed.

When all was ready, they led the horses down the only suitable trail from the bluff to the undulating plain below.

Sean laughed, then ran his eyes over the undulating plain of Mbejane's bare back.

They passed the blazing castle and came now to an undulating plain.

The relief of the territory is a slightly undulating plain.

Toward noon they had crossed the Sierra, and descended into the undulating plains which extend to the sea.

He paused a moment, then turned and ran on across the white undulating plain.

The southern portion of the city is an undulating plain.

The landscape is an undulating plain with scattered rocky hill ranges.