sled, travois (make sure you built it right, especially in snow), pulka.
sled and pulka restrict you ability to move through difficult terrain. Travois needs a saddle and you need to adjust the breaststrap differently.
check out this old video I made when getting fir branches with a travois.
https://www.youtube.com/watch?v=J_g8k27v1cc
You can see several mistakes there:
I had to loosen the breaststrap for the way back under load because it would ride to high up on the neck and restrict breathing. In my opinion the standard breaststrap is also too small to support pulling over a longer period of time. Nox had to pull with the girth, something that never, ever should happen. It was just ok on even ground but you can see how he had to struggle uphill in the second part of the video.
Necessary changes:
- padding the breast strap wide and thick enough.
- the breast strap has to run in a V-shape and has to be secured between the front legs to the girth. Look at how western horse saddles are secured against sliding back.
The loading plattform of the travois was too low to the ground. The plattforms have to ride higher to avoid strain on the back of the goat and also that the plattform catches on stumps or stones or, like in our case, on high snow.