Here is the Fort Knox of compost enclosures. We were frustrated by javelinas pillaging our compost bin, tipping it over and once even rolling it down the arroyo behind our house. So with our recent landscaping we included this structure. It has a concrete slab, stuccoed concrete block with rebar, and wrought iron gates. The two bins are "The Recycler" by Beaver State Plastics in Oregon.
Take that, javelinas.
