If you don't take 16 the other way would be to take 14A north to the Badger Basin road (294) then west to 120 then north through Belfry, Bridger to I-90 then east to Sheridan. Takes about 2 hours to Billings. You could take 120 out of Cody but you do go over a small pass north. The Badger Basin road goes through some unusual scenery getting to 120. If you go that route watch speed through Belfry and Bridger. Fuel is more reasonable @ Maverik just outside Bridger. You go through lots of farm land on the way to Billings. Easy route. We travel that route couple times a month to shop in Billings. East out of Billings on I-90 stop off at the Little Big Horn battle field. Listen to ranger talk first, buy CD then drive the battle field. Very interesting history. BTW, we live on a ranch about 15 miles north of Cody. JMHO.