* Cherries:
* Cluster of cherries
* Bunch of cherries
* Basket of cherries
* Crop of cherries
* Hills:
* Range of hills
* Chain of hills
* Group of hills
* Ridge of hills
* Stones:
* Pile of stones
* Heap of stones
* Scattering of stones
* Cairn of stones (a pile of stones often used as a marker)
The best collective noun to use will depend on the specific context and what you want to emphasize.