Where in Mexico is your ranch? The general area? What part of the Rio Grande (Rio Bravo) are you referring to?

big bend area. sorry I did not specify much of the area. but its close to the big bend national park. over by presidio. but my ranch is in mexico just on the other side of the national park. really nice area well for me I like it. wont be going back for another 3 weeks.

Gold may be present in small amounts in that part of Mexico like in the Llano River in Texas. In prehistoric times when Texas was under a salt water ocean, a huge fresh water river flowed out of the Mexican mountains in your area wearing them down creating the top soil rich delta we know today as the Rio Grande (Rio Bravo) Valley. I saw considerable evidence of the ancient river in the state of Coahila along the Salado River during my travels to Anahuac, Nuevo Leon and Allende, Zaragoza, Nuevo Rosita, and Muzquiz, Coahila. If your area was the ancient headwaters then you may find some occasional gold. It's worth checking out. Keep us informed.

Sounds good and I will keep everyone informed (: I know of some core samples close to the big bend area and core samples did bring out some gold but it was deep core samples, father in law used to work for that company so I might just have to buy a metal detector to see if I find anything. If I find anything I will post pictures. Can't wait till days off.