DCHP-1 Online
lash-line 
n. a long rope used to secure the load on a pack animal, sled, etc.
See also: lash
- 1933 The lash line . . . came loose and the load was spilling . . . all over the snow.
- 1933 Outside the [sled] wrapper the gun was tied to the crisscrossing lashline.
- 1933 The lash line . . . came loose and the load was spilling . . . all over the snow.