Create an outline to mark the footprint or overall diameter of your mound. To do so, place stakes in the ground and then connect them with strings. If your mound will have an odd shape or a circular shape, you can place a garden hose on the ground and shape it to whatever you desire.
Fill the area inside the mound with fill dirt to within approximately 1 foot of your desired height. Fill dirt is dirt not suitable for planting grass. Suitable planting soil is called "topsoil." You can use 100-percent topsoil if you choose, but fill dirt is cheaper and works nicely for this task.
Shape the dirt so the center or top of the mound is the highest point of the mound. Create a uniform slope around the mound with a metal rake.
Tamp the mound with a metal tamper to compact the dirt. This will make the mound smaller and create a more uniform shape.
Add more fill dirt to the mound where needed and tamp it down. Repeat this process until you have a uniform mound with a hard surface.
Place approximately 1 foot of topsoil around the mound and tamp it with the metal tamper. Again, add extra topsoil where needed, and compact it with the tamper until the mound's shape meets your needs.