Hi. I bought a prefab tiny cabin that I am putting on a gravel foundation so I hired someone to level the property and put down the gravel. Instead of leveling the ground with dirt they did it with gravel and it is extremely thick and high off the ground. My guess is about a foot or more off the ground rather than just the 4 inches needed. To me this looks awful and I was wondering if anyone knows if this is a sufficient way to level the ground.