Bill knows the area well, is a mapping expert, speaks Spanish which was really helpful since I don't (yet), and is a damn fine off-road rider and guide. A more friendly guy you'd be hard pressed to find. He took care to make sure that I was doing OK and never left me behind despite my slower pace. I only dumped my new DR once but since there was no picture, well .... you know the rest. Might have been in a spot like this that it didn't happen.
"Let us never forget those who can't remember" [author unknown]