Lewis and Clark expedition
Have you found the answer?
I feel that is a useful tool to the president, yes, at Thanksgiving every year at the White House, President Richard Nixon pardoned himself for the water gate scandal.
Answer:
Oregon Country
Explanation:
When Britain agreed to let the 49th parallel by the US/British boundary, the other state that was being debated with Britain is "Oregon Country"
This is evident in that, the 49th parallel agreement between Great Britain and the United States was about the north boundary of Louisiana Territory that lies between Lake of the Woods and the Rocky Mountains.
However, during this period, the two nations also decided to joint occupation of the Oregon country for some years.