Texola is immediately across the Oklahoma line and works as an optional eastern gateway photo stop, but the Texas itinerary begins at the border and reaches Shamrock first. The Texas Historical Commission's survey traces the road west through the Panhandle to Glenrio at the New Mexico line.
Route 66 was designated in 1926 and officially removed from the federal highway system in 1985. In Texas, Interstate 40 eventually took over the through-travel role, but substantial sections of the old corridor survive as business loops, frontage roads and local roads. That mixture is why a good Route 66 trip is more than simply driving I-40 and taking a few exits.
The 2026 centennial makes this an especially useful time to drive it: Texas' official travel program is highlighting the historic highway, while the state's preservation survey provides an unusually detailed record of the buildings, road segments and communities that made the corridor work.