1849 C. Lanman viii. 58 The distance from Hubbard's Cabin..in a direct line, is eight miles, but by the ordinary mule-route it is thirteen.
1898 Apr. 691/1 From Seville to Granada one may follow..the old horse and mule route by Alcaha de Guadaira.
1954 L. R. Hafen & A. W. Hafen i. 19 The Old Spanish Trail was the longest, crookedest, most arduous pack mule route in the history of America.