North Dakota, South Dakota, Wyoming, and Idaho are the four states which border the US state of Montana.
The four states that do not border a waterway are Colorado, Utah, Nevada, and Arizona.
Missouri, Kentucky, West Virginia, Maryland, and Delaware were the five slaveholding border states.
There are four states that border Lake Heron: New York, Pennsylvania, Ohio, and Michigan.
Kentucky, Missouri, Maryland, Delaware.
California and Arizona
Tennessee, Florida, Alabama
The border states during the Civil War were Delaware, Kentucky, Maryland, and Missouri. They remained part of the United States but were also slave states.
Capital: Salem Four States: Washington, Nevada, Idaho, and California
The four states that border Texas are Oklahoma to the north, Louisiana and Arkansas to the east, and New Mexico to the west. The nation of Mexico borders Texas to south.
There are more than two states that border Mexico, four do. California, Arizona, New Mexico, and Texas.
Wisconsin, Michigan, Illinois, and Indiana border Lake Michigan.