Where can the land navigation map sheet numbers be found?

The land navigation map sheet numbers are typically found in the upper right margin and the lower left margin of a map. This placement allows for easy identification of specific sheet numbers at a glance, which is crucial for effective navigation and referencing. When utilizing maps in the field, being able to quickly locate and verify the sheet number is essential for ensuring that you are using the correct map for your location or intended route.

This approach helps in managing multiple maps or ensuring that one has the correct version of a map, particularly when navigating complex terrains. The other options may provide information relevant to map features, but they do not typically indicate where the sheet numbers are located.