Is this a black salamander?
Thank you for your question. It would be helpful to know where it was found, and how long it is. I suspect it is a rough-skinned newt and the white slime is poisonous to you. You can read about them here: https://myodfw.com/wildlife-viewing/species/salamanders-and-newts
Thank you for the response. It was found by the eastern Cascades and is about 5 1/2 inches from head to tail. I've seen a couple in logs or leaf piles in my yard over the years but this one was stuck to the patio, looking to be all wrapped up in its own slimy secretions.
Then it is the rough-skinned newt I sent you to. Do not touch!