DCHP-1 Online
mule trail 
a trail used by pack-animals.
- 1859 A good wagon road to Fort Yale, and a mule trail thence equal to the best in California, and which can be kept open at all seasons, can be made at a moderate expense.
- 1859 A good wagon road to Fort Yale, and a mule trail thence equal to the best in California, and which can be kept open at all seasons, can be made at a moderate expense.