87th meridian west

The 87th meridian west is a line of longitude that is 87 degrees west of the Prime Meridian, which runs through Greenwich, England. Meridians are the vertical lines on a map that help measure the distance east or west of the Prime Meridian. The 87th meridian west runs from the North Pole to the South Pole, passing through parts of Canada and the United States. In the U.S., it crosses through states such as Illinois and Indiana.