To accurately identify what is located at point B on a specific map, I would need to see the map or have more context regarding its geographic details. However, if the question relates to general knowledge of river locations in Europe and the Middle East:
- The Tigris River is primarily located in Iraq.
- The Danube River flows through multiple countries in Europe, from Germany to Ukraine.
- The Tiber River is located in Italy, flowing through Rome.
- The Rhone River flows through France, from the Alps to the Mediterranean Sea.
If you could provide more context or details about the map, I’d be happy to help further!