We have a green waste and wood waste recycling facility here in town, called the Bolinas-Stinson Resource Recovery Project. It means that tree trimmings, garden waste, and all other manner of vegetative materials can be dropped off in town and turned into compost. It's a great setup, and it keeps things local: no fuel to truck it somewhere, no dumping in landfills. I'd heard about the gigantic tub grinder that comes to town every three or four months, but never seen it in operation. Yesterday I happened upon it at work and shot some photos. Awesome to watch this powerful machine in operation.
It costs $1000 to move it here, and then $400 an hour while in operation and it grinds everything up beautifully. The big files are then turned about six times by a backhoe, and then the compost is sold locally. Among other things, it makes a great mulch.