https://geology.com/world/the-united-states-of-america-satellite-image.shtml
The United States of America (US) lies on the North American Continent, sharing borders with Canada to the north and Mexico to the south. Although the US is comprised of 50 states, only 48 of these are joined together in one land mass. Alaska, found on the northwest corner of Canada, and Hawaii, several islands in the Pacific Ocean, are not physically attached to the main continental United States. Furthermore, the US has several "unincorporated territories." These are not considered states, but are "controlled" by the US government.
https://en.wikipedia.org/wiki/United_States_territory