Our layout is within half a mile of the Pacific Ocean. Between us and the sea is empty land once the site of the largest mill in Mendocino County – the Union Lumber Company. As they say, we are exposed to the elements. Our initial efforts to build hillsides used paper, cardboard, chicken wire and plaster. Diaster.
The method which works best for us is to make forms for the contours of the hillside or gullies, cover the forms with plastic sheeting, cover that with steel mesh and then make concrete the consistency of plasticine and work it into the mesh. Once dried you can paint it.
In these pics you can see the forms being put in place along the west wall for a hillside with a gully coming down and under the railroad track. We use plywood – mostly scrap and some new. We do NOT use nails – too difficult to get out if we change our mind – which we do – a lot!!!!.