If you wanted to know the symbol for river where on the map would you look?

the map key or the legend

Explanation:

operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings

where is thing if you show me on the map or have a map i can answer your question