Maya geographic regions included all of these exceptthe Yucatan Peninsulathe highlandsthe lowlandsLake Texcoco

The Maya civilization was primarily located in the southeastern part of Mexico, Belize, Guatemala, and parts of Honduras and El Salvador. The geographic regions typically associated with the Maya include:

1. The Yucatán Peninsula - This is a well-known area where many significant Maya cities were located, such as Chichen Itza and Tulum.
2. The Highlands - This region includes mountainous areas where cities like Quetzaltenango and Kaminaljuyu were situated.
3. The Lowlands - This encompasses the flat areas where major cities like Tikal and Calakmul were found.

However, Lake Texcoco is not considered a part of the Maya geographic regions. It is located in central Mexico and was associated with the Aztec civilization, particularly the capital city of Tenochtitlan.

Conclusion

Therefore, the correct answer to your question is Lake Texcoco, as it is not part of the geographic regions included in the Maya civilization.