Wyoming Highway 338 begins its southern end in
Sheridan at
I-90 BUS/
US 14 BUS/
US 87 BUS (N. Main Street) and exit 20 of
Interstate 90, which also carries
US 14 and
US 87 at this point. Named
Decker Road for the Montana community it reaches, WYO 338 travels north along I-90, paralleling it to the east. ==History==