Lily, make sure you call before you dig. You can get yourself into big legal trouble if you damage underground cable/wire without calling. It can be dangerous too if the gas pipe is damaged. Every state has a Call-Before-You- Dig center. it is fast and quick. You can look up the number of your state. It will take 2-3 business days for the utility companies to mark where the wires and cables are buried in your yard. It is worth the trouble.