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Using Latitude Scale to Compute Your Distance

The latitude scale on the side of your chart has the following markings. The each degree is equal to 60 miles. We then further divide the scale by minutes. Each minute is equal to one mile. Looking at the minute scale

We notice that there are tenths of a minute. Each tenth is equal to 600 feet. We can even divide it up further by estimating another decimal inside the tenths. This will give us our distance to within 60 feet.