Miner's Moss

Miner's Moss is tough, woven strands of some type of rubber that basically looks like a carpet of fine noodles. It's actually used more commonly as entryway matting, because it does a good job of getting and holding the dirt people track in on their shoes. As such, it's perfect for catching and holding the heavies as they flow down your sluice. It's manufactured as Nomad Carpet by 3M and generally costs a small fortune sold by the square foot. You can, however, save a bit buying in bulk.

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