Reno Prospecting Supply would be a good stop for information , As a person who has tried to mix a little prospecting with business trips the quote from Land rover would apply well - local knowage first, It's very hard to hit town and get acclimated , later you'll be home thinking of all the things you should have done different. I'm also a little un comfortable in new area's , and un sure of being in the right place. (Alot I'm sure is better now with GPS for knowing where you are. )
I'd try to plan well in advance - try to find some one to take you, at least once to get the lay of the land.