If you use a GPS system, set it to read out in UTM coordinates. This will provide you with probably a 10 or 12 digit number.

Just to add a little to this bit of information, once you have your gps set up for UTM you will be only concerned with the last five numbers of the top and bottem number showing on your gps. the first two numbers of the top and bottem number will get you into the grid square, the last three of each number will get you exactly where you are standing.

Kyle, i use a program called maptech, you can buy your whole state for under 100 bucks, it allows me to pick out a section of a map and print it out, they are topo maps and i can put the utm grid lines on the map along with several other bits of information.

Oldrgr, i was stationed at Tripler Army Medical Center back in the mid 70's, nice place and great island, hope to visit it again one of these days.