It is important to understand "Map codes" to be able to quickly date maps published by Rand Mc Nally.Map codes are in very small numbers and letters and are located on the bottom line of each map.

cities such as Salt Lake City and as far away as France and Thailand. He lived in Squaw Valley, Calif."We really had to work hard to plan when and where we'd see each other," Ballinger says.

"The probability of meeting someone who lives somewhere else is high, and so these 'traveling relationships' can often start from the very beginning.

In a world of smartphones, Skype, social media, 10,000 miles away can be as connected as 10 miles away"Hotels across the country say they have noticed more couples meeting up from their respective homes for romantic vacations.

There can be different map codes on each sub-map that is part of the overall map.

For this discussion I am going to refer to the map code on the large state map on any given state map.