Maps show many types of things. Maps can be on many different scales. Some are large-scale views of large areas. Some are small-scale views of minute features. Maps can have many different types of looks with lots of information or just a little.
The map above shows the population density of the United States, Canada and the northern part of Mexico. It’s easy to pick out cities based on population density. It’s also interesting to note the different settlement patterns in the eastern and western United States. In the west, much of the population is located in large towns. In the east, there are many large cities. There are also a lot of people spread out across the lands. Very few people live in Canada and most of those live in the southern portion of the country. The gray lines you see are not state boundaries but latitude and longitude lines.
Courtesy of NASA Earth Observatory. earthobservatory.nasa.gov/IOTD/view.php?id=7052. Public Domain.