The Raleigh News & Observer is running a summer feature series on a 1939 WPA Travel Guide on North Carolina. The book was titled "North Carolina: A Guide to the Old North State" and featured numerous detailed roadtrips throughout the state. This summer the N&O is retracing these routes to see how 70 years of time has changed - or even not have changed - the sights and towns along the way.
Today's Feature covers a drive along what is now Old US 421 from Liberty to Buies Creek. It's a great read, and the former alignment of US 421 is certainly worth exploring on your own.
The old route is best taken slowly ---Raleigh News & Observer
Photos I took last year along some of this route ---On Flickr
Though the book is no longer published - it can be found in local libraries - and even now and then on eBay. It's a great piece of North Carolina History.
UPDATE: You can find a copy of the guide on the Internet Archive.