Thanks, Char, for posting this excellent interview. I knew the song "Carefree Highway" was named after an actual highway in Arizona, but I didn't realise until now that the highway was named after the town of Carefree in Arizona. An internet search led me to maps and photos of Carefree, Arizona. The highway seems to start around 2Km (around 1 mile) south-west of the town. Carefree claims to have the largest sundial in the world.
http://arizona.hometownlocator.com/a...a/carefree.cfm
http://www.city-data.com/city/Carefree-Arizona.html