"Prepping," or getting ready to live without societal support, is apparently a largely American activity, and a recent one. Companies that cater to people who want to be self-reliant for food, water, and power have grown their revenue by about 700 percent over the last decade, and prepper products are now offered in places like Costco, Kmart, and Bed Bath & Beyond.
These individuals study End Times prophecy and believe that one of various scenarios might occur in their lifetime. While some Christians (and even people of other religions) believe that the Rapture will follow a period of Tribulation, others believe that the Rapture is imminent and will precede the Tribulation ("Pre-Trib Rapture[40] "). There is a wide range of beliefs and attitudes in this group. They run the gamut from pacifist to armed camp, and from having no food stockpiles (leaving their sustenance up to God's providence) to storing decades' worth of food.
A couple of weeks ago, on a leisurely Sunday afternoon, 40 people gathered at a church in Washington Heights for a show-and-tell session sponsored by the New York City Preppers Network. One by one, they stood in front of the room and exhibited their “bug-out bags,” meticulously packed receptacles filled with equipment meant to see them through the collapse of civilization.
What’s the bare minimum you need to navigate across land?  For most people, that would be a compass and map.  A basic road map is sufficient to get a rough approximation of the lay of the land.  More detailed relief maps can help plan for elevation and estimate possible water sources but they also take up more room in your pack.  Waterproofed or laminated maps are also extremely helpful.  Lensatic compasses are the most reliable for little money.  If possible, a compass and protractor are also extremely helpful for route planning.  Obviously, not as essential but nonetheless useful.