U.S. Route 90
U.S. Route 90 (US 90) is an east–west United States highway. Despite the "0" in its route number, US 90 never was a full coast-to-coast route; it has always ended at Van Horn, Texas with the exception of a short-lived northward extension to US 62/US 180 near Pine Springs, Texas which lasted less than a year, and the signs on that segment were changed to Texas State Highway 54, traveling from Interstate 10 (I-10) at exit 140A and heading to its northern terminus at US 62/US 180.
Wyoming Highway 90
Wyoming Highway 90 is a fairly short state highway located south-southeast of Glenrock named Boxelder Road. Highway 90 begins southeast of Glenrock and north of the community of Boxelder, for which the roadway is named and provides travel to. Highway 90 picks up where Converse County Route 17 leaves off as the roadway begins south-southeast of Glenrock (Converse CR 17 continues south to Boxelder). Highway 90 heads north passing under Interstate 25, but with no interchange between the two highways. A mile after crossing I-25, Highway 90 reaches its northern terminus at I-25 Business / U.S. Routes 20, 26, and 87 in Glenrock.