I'm not sure why you posted a message about Nevada Concealed Carry laws on a Virginia Open Carry message forum... But I'll throw you a cookie and bring you back on topic... well, somewhat.
The Nevada Attorney General's analysis of the law is an interesting tutorial on the difference between "upon his person", which is what the Nevada law uses, and is fairly restrictive, "upon or about his person", and Virginia's own term, the plain but all inclusive, "about his person".
Nevada would seem to have a deficiency in not providing for a way to transport unloaded guns when needed from time to time. I suppose you'd have to post the question in the Nevada forum to see if they have developed a work-around to that.