A barrow or mound of any kind is a "Tump."
"A Cotswold Village"
J. Arthur Gibbs
But let us offer to show them pictures or to explain the workings of the camera or the typewriter and it is a different story, for then every man Jack drops his oar or Tump-line and rushes to our side like an excited schoolboy.
"The New North"
Agnes Deans Cameron
He seized a Tump-line, swung the pack upon his head, and set off across the portage.
"The Sky Pilot in No Man's Land"
Ralph Connor