Both Jennifer and Theresa suggested that the mysterious fur on our trail could be from a rabbit. I thought they were onto something because the fur was so soft, just like a rabbit's fur.
We were able to hike the trail on Friday after the big snowfall and we were amazed to see that the trail had many spots that you could clearly see rabbit tracks.
I think our mystery is solved.
Thanks for all the ideas and help in figuring out our mystery fur.
Barb-Harmony Art Mom