sentences:  In Dumas, US 287 merges with its "parent route", US 87, and continues its south/southeasterly path as a co-signed route to Amarillo.After passing through the heart of downtown Amarillo, US 87 splits off to the south to merge with I-27, and US 287 merges with I-40 and continues co-signed with the interstate until just west of Rick Husband Amarillo International Airport, where it veers to the southeast toward Claude, the seat of Armstrong County.US 287 follows this east-southeasterly path through Clarendon and Childress, where it intersects US Highways 83 and 62.