Identificaciones de bafflingnewt

A juvenile with no spots? This one was in a vole nest under a piece of trash. That's the only way I can find them is under trash. There is no downed wood or natural debris in this meadow. I can't go digging for them. It's a protected area, plus I would fear injuring them.
I've been picking up human refuse here over the years. It's ironic that I can only find Tiger Salamanders under garbage.