The lake is broadly divided into four zones on the basis of salinity values, namely the southern, central, northern and outer channel.

However, the northern channel's harbor was made from its sediment.

As it flows past Harringworth, the river forms two channels, with the county border following the smaller, northern channel.

It is no longer an island, since the northern channel separating it from the mainland has filled over.

Previously, it was surrounded by water, but the northern channel was filled in to make the harbor.

Those guys are two hours away from the entrance to the northern channel.

The forces to the north are tokens, just to keep us from thinking we've got a clean shot going through the northern channel.

We start here at the entrance to the northern channel.

By that time, Seawolf would be far down the channel, within a few hundred yards of the northern channel's task force.

The group searching the northern channel attacked and sank a submarine on the night of 29 and 30 April.