WILL MARK U BRAINLIEST The map shows disputed territory in Louisiana during the 1810s.

Which waterway officially became one of Louisiana’s borders in the Adams-Onis Treaty of 1819?

Calcasieu River
Mississippi River
Pearl River
Sabine River

the Sabine

Explanation:

Many murders later the prospect of life in a totally unprotected region was mercifully ended by the Adams-Onís Treaty of 1819, establishing the Sabine as the U.S. border and belatedly welcoming eight of our current parishes into the state of Louisiana.

maybe you need to work on the pipes in the house. i am just saying this because you did not give any details.