Hello I have lived in this house for 10 years but could never think of ideas for my back yard. I live on a lake and a hill. I wanted to cut into the hill for stairs but the problem is erosion. I put landscape timbers on top of the ground a filled it in with gravel but it is not even and dangerous. Can you help me extend my sitting area and think of a cheap and easy way of putting nice stairs out of stone or something that wont erode.