A water gap is a place where a river has carved through a mountain range.

A spokesman for the water gap did not immediately return several phone calls on Saturday.

Gene flow across the water gap therefore seems to be very restricted.

There are no water gaps carrying rivers through the ridge.

Due to the lack of a water gap through the mountains, the mountain passes are relatively high.

A water gap is a similar feature, but one in which a waterway still flows.

Downstream of the lake, it exits this valley through a deep water gap.

In the Water Gap, the park and everyday life are intertwined.

The creek then turns north and passes through a water gap in Little Mountain.

The strata in the stream's water gap are all inclined to the southeast.

Most commonly a narrows is a strait, though it can also be a water gap.

As the ridge continued to fold upward, erosion cut through and the water gap was formed.

It also flows through a deep water gap.

When we put water gaps across arroyos, Mother Nature is good at washing them away.

I recently did a painting near the Delaware Water Gap.

A water gap is usually an indication of a river that is older than the current topography.

Both of these water gaps are relatively narrow.

Speed was essential because enemy artillery was trained on the water gap.

The stream then leaves the water gap, crosses Pennsylvania Route 901, and turns west.

Water gaps often offer a practical route for road and rail transport to cross mountain ridges.

But in the Delaware Water Gap, the surprises are all part of the fun.

Quartizite from the Silurian Period can be found in this water gap.

Four of Pennsylvania's major rivers cut through Blue Mountain in water gaps.

Visitors can see the Delaware Water Gap from this location.

While visitors number five million a year and growing, making the Water Gap the country’s 10th-most-visited national park, few grasp the breadth of its offerings.