Due north.
To travel from the US state of South Dakota to Oklahoma, you would travel south.
Departing Texas you would travel north to reach South Dakota.
Departing South Dakota you would travel southeast to reach North Carolina.
You would travel northeast to get from Texas to New York.
south Dakota and north Dakota
South Dakota and North Dakota.
North Dakota is north of South Dakota. If it was above South Dakota, it would be floating in the air.
South Dakota and North Dakota.
Departing South Dakota you would travel southeast to reach North Carolina.
South Dakota to Canada
South Dakota to Canada