mississippa arkansaw river
the st.lawrence river forms part of the border between the u.s and canada. The rio grande borders between the u.s and mexico.
Physical features such as rivers, mountains, and desert regions are used to define US borders. For example, the Rio Grande River serves as the border between the US and Mexico in certain areas, while the Rocky Mountains define parts of the border between the US and Canada.
The Rio Grande forms part of the border between the US and Mexico.
I believe that would be Hawaii.
Most of the borders of the U.S. are marked by oceans; the next most frequent natural barriers are rivers.
Canada and Mexico.
No, no US state has perfectly square or rectangular borders. State borders are determined by natural boundaries such as rivers, mountains, or specific latitude and longitude lines, resulting in irregular shapes rather than perfectly geometric ones.
kentucky
the Rio grande river
Both the St Lawrence and Niagara Rivers do
lake superior, lake erie, lake ontario, and lake huron (4 of the 5 great lakes) the other borders are land borders (49th parallel) and alaska borders the yukon and British columbia via a land border =============================================================================== The International Boundary between US and Canada runs through several rivers and over 50 lakes.
Borders,Nation,Continents