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a reference line. The digits are printed at different sizes to accentuate the

thousands and ten thousands places, which change as each new grid line marks
1000 meters of distance. Notice that the ones, tenths, and hundredths places are
left off of most of the UTM coordinates printed on the map.
The precise UTM coordinates of any point on a map can be found by noting
the coordinates of the nearest intersecting blue tick marks and then by using the

kilometer scale at the bottom of the map to measure the number of meters away to
the east and north the point is from the nearest tick marks (Figure 3).

Fig. 2.3 The upper left corner of a topographic quadrangle map
showing the UTM grid

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Example: The upper left corner of Figure 1.4 is marked 07 000m E indicating
that the tick mark associated with this number is 607,000 meters to the east of the
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reference line. Moving east,each UTM line increases by 1000 meters giving 08,
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09, 10, etc. The 100’s of meters are left off because they are 000 at each tick.
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On the left side is a similar number 55 000m N indicating that this mark is
4,455,000 meters north of the reference line. These numbers count down by 1000
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meters going south ( 55, 54, 53, etc.) indicating a decrease in distance of 1000
meters toward the reference line with each UTM mark.

Exercise:
1. Determine latitude and longitude of any three points on the map.
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