Parked at the boulders TH SE 281st Way.  Rode the clockwise loop; Iron Brigade, Anaconda, Python, Snake and sat in the sun by the "ponds".   I was amazed to see that the trail crew removed the carpet of fir branches from Iron Brigade already, very tidy.  On Anaconda, some recent trail repairs were done (gravel patch) where a tree had tipped.  No trail blockage; didn't have to dismount once.  Huge thanks to whomever does all this work (KC crews?).