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Contour Maps,actually,contour maps measure their elevations.
Maps can show elevation with contour lines
contour maps are maps that depict contour line. they contain lines of equal heights that are joined together and help to show elevations, terrain shape and many other features of the earth
Contour maps.
Contour Lines
longitude
A world map doesn't have to connect points of equal elevation, but there are world maps that do and they are called contour maps. See the link for additional information about contour maps.
You can update the maps on garmin.com. You can update whenever you wish, but if you purchase a lifetime subscription, you will receive 4 updates per year.
Maps can be created with differing scales. These days, it's childishly simple for the cartographer to change any scale on any parameter before printing. It's possible one of your maps is 10 meters/interval while the other is 5 Or, if one of your maps was printed before SI was made standard, it might be 'Imperial' Or, if one of your maps was published in US First things to check on any map; Date, scale, orientation, contour interval
very tight contour lines
Contour lines
topographic maps have contour lines that show a specific place...