Then he goes back to his cave, where the river is born, high in the Sierra.

Afterward he sat in the Sierra and looked at his map.

"Then we will meet you at the bar in the Sierra," he said, pointing over his shoulder.

Five types of vegetation cover have been identified in the Sierra.

Climate in the Sierra is divided into levels based on altitude.

A lot of the folks in Sierra not only don't speak, they don't even move.

There are only 75 stands of them left in the Western Sierra.

Most conservation in the Sierra is controlled by indigenous communities.

The men in the Sierra were so near that she shrank at their fury.

He ate the sandwiches sitting in the Sierra, waiting to get the car into the ferry.