Which state of the 48 contiguous states has the longest border with Canada?

To find the state with the longest border with Canada among the 48 contiguous states, we can start by looking at a map of the United States and Canada. This will help us identify which states are located along the northern border. Additionally, we need to consider the length of the border that each state shares with Canada.

Once we have this information, we can compare the lengths of the borders of the different states. The state with the longest border will be the one that shares the most extensive stretch of the northern border with Canada.

To get an accurate measurement of the lengths of each state's border with Canada, we can use various sources, such as official government websites or reputable geographical databases. These sources often provide precise information on the length of each state's border with Canada.

By gathering this data and comparing the lengths of the borders, we can determine which state among the 48 contiguous states has the longest border with Canada.