Many slopes are rock fields with sparse vegetation.

许多山坡都是植被稀疏的岩石地。

《柯林斯英汉双解大词典》

Indoor tennis courts, soccer fields and rock climbing centers permit people to take part in these sports in all seasons.

VOA: special.2010.01.29

The glacier starts just below the summit and extends for some 2, 000 feet before giving way to huge boulder fields of volcanic rock.

CNN: The snows of Erukenya

It was perched on the slope of a minor mountain, about a third of the way up, with thick slabs of rock stuck under the front side, a new rock every year, to keep the house from tumbling forward into the fields of wild raspberries.

NEWYORKER: Reverting to a Wild State