The Tolkien-related route names query is actually a trivia question on p.19 of the Swain guide. The 12 routes or variations that Swain found were Bag's End, Balrog, Balrog Escape (Bridge of Khazadum), Elf Stone, Ent's Line, Eowyn, Gil-Galad, Middle Earth, Nazgul, Orc Stone, Ruhn, and Ringwraith. He also says Journey's End, The Sting, and Dungeons and Dragons might qualify, though the last one doesn't seem Tolkein-specific (and anyway, it's at Skytop).