Most of BC's northern border is with the Yukon Territory. The rest is with the Northwest Territories.
Montana borders North Dakota (ND) and South Dakota (SD) to the east, Wyoming (WY) to the south, and Idaho (ID) to the west and southwest. To the north Montana borders Canadian provinces British Columbia (BC), Alberta (AB), and Saskatchewan (SK).
What state borders to the north of where? There is not enough information.
Washington
In terms of other provinces/states, British Columbia (BC) to the East, Saskatchewan to the West, Montana to the South, and the Northwest Territories to the North.
what state borders montana to the north
Congo borders Zambia in the north.
Atlantic borders the East coast of North America. Pacific borders the West Coast. Arctic borders the North coast.
BC
Oregon borders to the north and Washington is above that.
The Arctic Ocean borders Asia in the north.
The Atlantic Ocean borders the UK to the north.
Tennessee borders Mississippi to the north.