I want to remove and level off a patch of grass and put shrubs. The soil has its share of river rocks in it (it's next to where an above ground pool used to be). Can I use a grub or field hoe to break up and move the soil around, or will the rocks be a problem? They're just river rocks, I don't think I'd need a pick axe or similar tool.

I'm leaning towards the hoes because I can use them for other projects..

Thanks.