Lambert Glacier, Antarctica, is the biggest glacier in the world. This map of Lambert Glacier shows the direction and speed of the glacier. Mapmakers use different methods, or ways, to share information with their readers. Some of these methods are called DOGSTAILS. DOGSTAILS stands for:• Date: When was the map made?• Orientation: Does the map show the directions north, east, south, and west?• Grid: Does the map have lines that cross to form squares?• Scale: Does the map show distance—how far apart things are?• Title: Does this map have a title?• Author: Who made this map?• Index: Does this map have an index—the part of the grid where specific information can be found?• Legend: Does this map have any symbols? Does it tell you what those symbols mean?• Source: Where did the mapmakers get their information?