The village has big reservoir (kanmai) and vast paddy lands.

However, Almadén still has one of the world's biggest reservoirs of mercury.

Lake Baikal, the world's biggest reservoir of fresh water, is currently under threat from industrial pollution.

As a result of the dam construction, one of the biggest reservoirs in Europe was formed.

"But if a big subcratonic reservoir blows, it could be a major disaster for the affected planet."

This dam created the biggest reservoir in Asia when it was built.

Some of the biggest reservoirs in the world can be found along the river.

It is the biggest reservoir in Haman with a circumference of 4 km.

What if harnessing hydroelectric power didn't require building a large dam and an even bigger reservoir?

Protestors have condemned plans for Britain's second biggest reservoir as monstrous.