I hiked here two weeks ago and the hike may eventually be off limits. There is a company called the Anniversary Mine Prospects LLC that owns the land and mines in the wash and above. They have been doing a lot of grading work and adding some roads.
There are no trespassing signs--private property--in several places and the wash had a chain link fence that had been knocked over by someone.
I'm planning on going back in January and I'll post if there are any changes.