It marked the 31 ° North latitude, which served as the boundary line between the Mississippi Territory in the United States and Spanish West Florida as set forth in the 1795 Pinckney Treaty, formally known as the Treaty of San Lorenzo.
It marked the 31 ° North latitude, which served as the boundary line between the Mississippi Territory in the United States and Spanish West Florida. The 31 ° North latitude boundary extended from the Mississippi River east to the Chattahoochee River, as set forth in the 1795 Pinckney Treaty, formally known as the Treaty of San Lorenzo.