Spray insecticide near the rocks you want to remove several hours before you begin. Insects and other animals live under the rocks and can become irate when you're moving their homes.
Put on work boots and your leather gloves to protect your hands and feet while you work. In addition to protecting against scratches, you'll be protecting yourself against bug or animal bites and plant irritation.
Remove small rocks or pieces that are at the surface and not buried under dirt or debris. Place these rocks in the wheelbarrow for easy transport.
Shovel out larger rocks that may be buried or harder to remove. Have a helper carry the rocks to the wheelbarrow if necessary.
Rent equipment to help you thoroughly remove any remaining pieces of decorative rock. This could be a tractor with a front-end loader or a rock-picking machine that can scoop under the heavy rock while leaving the topsoil.
Check to see if your municipality allows rocks to be placed in waste containers. If not, arrange to have the rocks picked up by a service, if possible. Look for local lawn or junkyard services that remove rock. Depending upon the condition, quality and type of rock, you may be able to sell the rocks to a lawn or home improvement store or landscaping company; contact these businesses in your area to find out if they buy used decorative rock. Rock is sold by the yard, so offer to sell your decorative rock for a little under the wholesale price; you and the company will make a profit and you will get rid of the rock.
Place mulch or potting soil where the rocks were removed, allowing time for grass and plants to regrow.