Hi, its funny you say google maps, it just occured to me so i had a look.
yes i was under that impression too after looking at the map, the single line branch curving to the right ( past the depot, destict turn-table ) carried on to Newquay.
then coming back on its self is the clay line to the docks...Also sidings and other stuff.
largee area's of white guesing thats clay dries haha!