There is only one state directly north of the US state of Idaho, the Canadian state of British Colombia.
Washington & Oregon.
Wyoming is bordered on the southwest by Utah and on the west by Idaho.
The two states that border Tennessee on the west are Missouri and Arkansas.
Washington and Montana.
If you mean which two states border BOTH Nevada and Montana, the answer is Utah and Wyoming.
Nevada and Utah
Idaho and Montana
Oregon and Washington
Washington and Idaho
Washington State borders two US States: to the south is Oregon, Idaho is to the east. The country of CANADA , specifically, the Provence of British Columbia is to the north and The Pacific Ocean is to the west.
Arkansas and Louisiana.
Kentucky and West Virginia
Utah is bordered by Nevada to the west.