South on I-25.
You would travel northeast from Denver to Bismarck.
you would have to travel northwest.
North
Bismarck, ND is north-northeast (NNE) of Denver, CO.
North Dakota is north of Colorado, so if going a straight way, you would be going north. But it usually depends on what interstates and/or freeways you are taking. The exact direction of travel is 19 degrees E of true North.
SW
SouthWest
south
You would travel north to accomplish this trip.
im not sure but they are going to denver on july 22. Also they are going to las vegas on july
Southwest
Northwest.