Once I had it reg'd, and the copper plate w/ me in the cab, I fueled it full on the `Zona side of the river. Crossing over I headed south. About 50 miles of pavement before I could start searching for the "hard to find" end of the Bradshaw Trail.
This was rumored to be somewhere among the Ag fields on the west side of the river.

After wondering a bit on the grid of pavement that borders such fields I spotted a likely track. Sure enough, once I made it to the far side of the fields I found the "Trail" heading west over a small hill.
Topping the hill gave me this view. I'm thinking that this will be far easier than I thought.