The creek that runs along the back of our property was overgrown with thorns and thickets when we moved in, so much so that you could hear it but not really see it. So I broke out the clippers and have been hacking through the overgrowth for the past few weeks. I pulled out what is hopefully the final thorn bush today, and just have to clear out a few more weeds and piles of discarded wood to finish it all up.
Well not quite, I still have to rent a Uhaul and make a few trips to the dump- I've got about two dumpsters worth of weeds and thorns to discard :P