At one valley bottom in the southern region of the park, a massive sinkhole has developed.

"The valley bottom that you saw is a mountain top eight thousand feet high, five miles away from here."

In the north, the flat valley bottom is only a few hundred feet wide, but it widens toward the south.

She had pegged out every square foot of the valley bottom.

Trees grew all the way down into the valley bottom, and men swung axes among them.

A deeper blackness along the valley bottom looked like a river.

And the path became steadily less difficult as it descended toward the valley bottom.

From the last houses, Sunder picked his way toward the valley bottom.

The small park (300 km2) lies on the flat valley bottom, next to the river.

It's almost half a league to the valley bottom.

He walked across the valley floor, eyes on the ground.

They were now perhaps two hundred feet above the valley floor.

The river still continues to cut into the valley floor.

She continued almost all the way to the valley floor and found it easy going.

The valley floor was not more than a thousand feet away.

I've seen only human signs since we came to the valley floor.

I led the way in silence to the valley floor.

By the middle of the 20th Century, it had spread out into the valley floor.

Ali went for a short run above the valley floor.

The valley floor receives and average of 900mm per year.