ClipArt ETC
Block diagram of the cuestas and lowlands of Central England.

Lowlands of Central England

Block diagram of the cuestas and lowlands of Central England.

An image of what a regular valley would look like if it were cut to make a plateau and lowlands.

Valley

An image of what a regular valley would look like if it were cut to make a plateau and lowlands.

Windmills stand along a canal. The are probably polder mills used to move water up and out of lowlands, reclaiming farmland from the sea. The location is probably the Netherlands.

Windmills along a Canal

Windmills stand along a canal. The are probably polder mills used to move water up and out of lowlands,…