what is a map index?

Answer 1

a grid is superimposed on the map A,B,C on one axis and 1,2,3 on the other each cell is idebtified by a letter and a number you can then look up a named feature on the map (such as a street name) and the index will indicate which cells the feature is present in.

Answer 2

the map index shows the cordinatees of places on the map

Answer 3

it is at the back of the map that shows u the cordinates of what u r looking for