Mills, Wyoming
US-20/US-26 West at WY-257/To WY-220 and Bus. US-20/Bus. US-26
US-20/US-26 West at WY-257/To WY-220 and Bus. US-20/Bus. US-26 (not marked) in Casper. Use right lane to continue west on US-20/US-26 to Shoshoni. Continue straight for WY-257/To WY-220 which is the Casper West Belt Route.
US-20/US-26 East to I-25 and US-87
US-20/US-26 East to I-25 and US-87 on freeway connector between Yellowstone Highway and I-25.