Canada.
There are no states north of Idaho, Montana borders Idaho to the east, although because of Idaho's shape Montana does, for a section of southern Idaho, border Idaho's southeastern part.
Idaho is directly North of Utah and Wyoming is North East of Utah
*Idaho *Wyoming *South Dakota and finally, *North Dakota.
Idaho-west Wyoming-south North and South Dakota-east Canada-North
North Dakota, South Dakota, Wyoming, and Idaho are the four states which border the US state of Montana.
Idaho borders Wyoming to the east, Montana to the northeast, Nevada and Utah to the south, Washington and Oregon to the west, and British Columbia, Canada to the north.
Wyoming is north of Colorado, in the Rocky Mountains. It is bordered by Montana to the north, Idaho and Utah to the west, and South Dakota and Nebraska to the east.
Idaho, Arizona, Colorado, New Mexico, Wyoming, and Nevada. To the north, Idaho and Wyoming; to the east Colorado; to the south Arizona; and to the west by Nevada
Wyoming is bordered on the north by Montana, on the east by South Dakota and Nebraska, on the south by Colorado, on the southwest by Utah, and on the west by Idaho.
Montana is bordered on the east by North Dakota and South Dakota. Wyoming is bordered on the east by South Dakota and Nebraska.
Wyoming is bordered on the north by Montana, on the east by South Dakota and Nebraska, on the south by Colorado, on the southwest by Utah, and on the west by Idaho.
Idaho borders Wyoming to the east, Montana to the northeast, Nevada and Utah to the south, Washington and Oregon to the west, and British Columbia, Canada to the north.