The 7-mile double trackway above Carson, Washington, another trackway in snow across a farm near The Dalles, Oregon, that was investigated and photographed by deputies but not, to my knowlege, publicized, Tollgate, the Cox sighting, which wasn't extraordinary but which was backed up by evidence that showed the animal did exactly what the witness said it did, everything Bob Titmus found and so on. I would also include hairs that match each other, but no known animal. At least one of these was embedded in the Skookum Cast. It did not come from Dr. Sarmiento's head.
Because of the focus on the "best evidence", and the efforts to debunk it, there is much that just seems to be unknown even to people who've looked into it somewhat.