I'm faced with a short traverse across an open slope that was laid with a sort of geotextile maybe 20+ years ago. It's a green material made up of many fine strands, not dense enough to be a fabric per se, but rather sparse enough that it is now strongly knitted into the soil. So, I can literally chop a line through it with my trusty Estwing to get my shovel in, but then it is so firmly embedded in the dirt that I literally can't overturn a shovel full. I'd have to shred it in two dimensions to make any progress with the shovel. Astonishingly resilient in other words. In another area I had rolled wire fencing laid down maybe 40+ years ago, comparatively easy to snip through, bend, roll back or otherwise displace, but this green plasticy stuff has got me stumped. Any one else ever deal with this type of thing?