A few small and tiny craterlets mark the interior plain.

Made up of volcanic rock the hills stand about 500m above the interior plains of the country.

They crossed the heights and came to the inland slope, a drop toward the central interior plains of the continent.

The interior coastal plain has a relatively low elevation.

On the largest islands, the interior plains were fertile and suitable for new development.

Only a few tiny craterlets mark this interior plain, and a small crater near the south-southeast inner wall.

Outside, balloons in the yellow and green colors of Brazil rose into the blue sky over this capital in the interior high plains.

The interior plains are encircled by a ring of mountains.

With coastal mountains and interior plains, the Americas have several large river basins that drain the continents.

The grasslands of the interior plains are perhaps America's most abused ecosystem.