I was just given a bunch of hides as tends to happen. Five Beaver hides and two Yak hides.
Some of the beaver hides are moth eaten so brain tan fur may be out of the question. Then I wondered if beaver was used for snowshoes as I imagine the tight grain and greasiness would work better than moose. I could skip the thinning that moose needs. Then I found this old archival footage of a man making babiche from beaver. https://youtu.be/_B18H795xXA
Not sure what I am going to with the Yak. Hopefully I’ll make a sleeping pad, but likely more bark tan. Yak is a super tight grained leather and would likely work for babiche as well.