Ring = rotating outer ring on some hand compasses marked with
= compass direction to a landmark.
= a detailed map for nautical use.
= direction you want to go.
= an instrument for dividing and measuring lines.
The number used in UTM to define how far east or west the position
Global Positing System: A network of satellites and mobile receivers
used in electronic navigation.
= compass direction boat is pointing.
= a nautical unit of speed measurement equal to 1.15 MPH.
Case = a waterproof bag made for maps. Freezer quality, Ziplock
type bags may do.
North American Datum: Numbering system with in UTM. NAD 27 being
the older and NAD 83 the newer.
Mile = the average distance on the Earth's surface represented
by one minute of latitude.
The number used in UTM to define how far north or south the position
Rulers = two rulers, or rules, hinged so that they are always
= found on some hand compasses, turns with azimuth ring to align
with compass needle.
= a graduated, semi circular instrument for plotting and measuring
= Two fixed objects, one behind the other, in line with you
and your destination.
The ratio of distance between the "real" distances on
the earth and the distance on the map. Example 1inch = 24,000 feet.
Map = a detailed map for overland travel.
Grid Reader: A clear plastic sheet used to measure UTM coordinates
on a paper map.
Universal Tranverse Mercator: The system used for creating coordinates
used with GPS and topo maps. Expressed as NAD 27 or NAD 83.
A location defined by coordinates from a GPS or read from a map.