I believe the taxiway is labeled 20R... take a look at google maps in satellite mode.
Actually... you ironically posted the taxiway where he landed... the runway is 20R... the taxiway is 20L...
L for Lando.
Just about everything on an airfield is color coded. Rwy markings, centerline, edge markings, etc., are painted white. Rwy edge lights are also white. Taxiway markings are yellow and taxiway markings are yellow. I heard on one source that Ford had some sort of small seizure.