Answer:
Therefore, the Pacific Ocean is the major body of water that forms the western border of the Oregon Country, as indicated by the "north american land claims, 1828" map.
Explanation:
In order to analyze the "north american land claims, 1828" map and determine the major body of water forming the western border of the Oregon Country, we need to carefully examine the map.
Based on the information provided in the question, the Oregon Country is the area of interest. Looking at the western border of the Oregon Country on the map, we can see that the Pacific Ocean forms the major body of water along this border.
Therefore, the Pacific Ocean is the major body of water that forms the western border of the Oregon Country, as indicated by the "north american land claims, 1828" map.
