Map titled Louisiana Purchase, 1803, with regions showing Louisiana Purchase (U. S.), a large section stretching toward the Pacific Ocean from the Mississippi River, United States, including the original 13 colonies plus Ohio, Kentucky, and Tennessee, Territory controlled by United States, including the Mississippi Territory in the South and the Indiana Territory in the Upper Midwest, Territory controlled by Britain, including the Pacific Northwest and much of what is now Canada, and Territory controlled by Spain, including the Southwest, Mexico, and Florida. © 2006 The Exploration Company

According to the map, which country controlled land bordering the northernmost part of the Louisiana Purchase?

France
Canada
Spain
Great Britain