While listening to the SF Giants' final game of the season (and of manager Bruce Bochy's career) over my phone on mlb.com, I was able to clear this much area of tumbleweeds and other brush. The pile in the far right is all of the material I cleared. I wish I'd remembered to take a "before" photo.
Getting the brush cut back from that fence is good. Unfortunately, there's no place to put the accumulated brush other than to pile it up. Maybe it makes a temporary habitat for the local wildlife.