Prospecting in Mexico is a "high risk-high reward deal" for the small guy. There is alot of gold in the deserts of Mexico, much like the Ca/Arizona deserts 100plus years ago. BUT...Plan on dealing with; Federale road check points(if they see prospecting equip. in the truck, you'd better have the right answer or plan on loosing everything incl. the vehicle, paying a fine and spending the night in the carcel). ( 2) The ejido, delagado or locals becoming suspicous of your activities( refer back to fines, jail and having all your stuff sacked)and worst of all... (3) Your prospecting an arroyo or mesa and stumble across narco trafficos, banditos or coyotes doing their business, in which case a bullet and shallow grave will be upon you in short order. I've been off-roading and fishing Mexico for many years and more recently have been doing some prospecting down there as well(" the results have been very encouraging to say the least") Getting to know the area and some of the people first where you would like to prospect takes alot of the risk out of it. Having a minimal amount of prospecting gear in your truck is best and a ready supply of good answers if asked "what is this senor?" Ah yes!" I use that(bucket screen) to catch sand crabs for fishing." You get the idea......Rob