Just a heads up so you don't get yours lopped off!

Dropping onto 47 from the backside of the track, you're likely to encounter several neck-height yellow CAUTION tapes across the trail. There is no sign at the trail-head that it's closed.

The first one we assumed was a bad joke and took it down.

After the next two, we saw the reason - there is a huge mound of dirt where the trail used to be. Looks like the race track is getting an overhaul/re-enforcement and they're encroaching into the BLM.

It's not a problem to hike-a-bike over the stuff and continue on your merry little way.