Today less than 10 percent of this old-growth forest remains.

The cause of the old-growth forests has become the leading conservation issue in the country.

These are old-growth forests and support a huge range of plants.

We don't want these old-growth forests to go the same way.

Fishers are more likely to be found in old-growth forests.

They continue to allow logging on many of the remaining old-growth forests.

More is at stake than foul air and loss of old-growth forests.

Nearby, an area of old-growth forest was almost completely destroyed.

Some old-growth forests can also be found in the wilderness.

Today, old-growth forest covers only about five percent of the watershed.

At 32,800 km2 it is the largest virgin forest in Europe.

It is a protected virgin forest with little road access.

The western part of the region is covered by a thick virgin forest.

The farmers have to move on to a virgin forest and repeat the process.

People are calling on the government to preserve this virgin forest as a park.

The western side of the district is covered by dense virgin forest.

No great stands of virgin forests remain as they do in the Northwest.

Stockholm is the only European capital with virgin forest so close to it.

Some of the land in question is virgin forest that would be deforested.

Once a patch of virgin forest, the trees still stood, black and dead against the pale blue sky.

Some of the trees in this ancient woodland have been here for more than 300 years.

Such indicators can still be seen in many ancient woodlands.

These areas were surveyed in 2001 for evidence of ancient woodland.

For this reason, it is considered to be an indicator of ancient woodlands.

None of this ancient woodland now remains and nearly all the species have gone with it.

Outside, there are beautiful walks through the valley and ancient woodlands.

It is considered a good indicator species for ancient woodland.

For over 400 years, it was a rounded hill and ancient woodland.

The forest also includes a small percentage of ancient woodland.

Several notable but very small and vulnerable areas of ancient woodland can still be seen.

It was primary forest, undisturbed by the hand of man.

Its species' richness is about half that of the primary forest.

It has lost more than half of its primary forest in the last five years.

Before the early 19th century, most of the Singapore main island was covered by primary forest.

It is found in primary forest below 450 m altitude.

In the last five years, Nigeria lost nearly half of its primary forests.

This left only approximately 1-2% of old secondary and primary forest.

By that time, about two-thirds of the primary forests had been cut.

"We found the most serious pollution I have ever seen over primary forest," he said.

"What we really need are very large areas of primary forest that effectively serve as fire breaks," he says.

On many places there are primeval forests being left to its own resources.

There's a forest behind the second door, the Northern one, primeval and pristine.

It's the silence of the primeval forest, heavy with threats.

The overall effect was of a circus being performed in a primeval forest.

The ocean was sliding away under them and soon they were above the primeval forest.

Both forests were once parts of the same primeval forest.

Why does this show end in the pretty, primeval forest, where time and change don't exist?

As I knelt there in that primeval forest, the knowledge made me sick.

He was in a primeval forest with huge trees.

The Polish primeval forest could be a good flagship project.