Possible Clues:

• Butte-to-Helena dir
• Tampa-to-Jacksonville dir
• Baton Rouge-to-Jackson dir
• Denver-to-Bismarck dir
• Compass heading
• Raleigh-to-D.C. heading
• 22.5 degrees
• Raleigh-to-Philly dir.
• Ark.-to-Ill. dir
• Dir. from Providence to Boston