A newt. More accurately an eft, which is a terrestrial stage of a newt’s life. The efts eventually make their way to water and become newts, which are duller in color and have a tail more suitable for aquatic life.
Birders, hikers and anyone else who uses wooded trails must be careful in the spring and summer, especially after a rain, to be sure not to step on these interesting creatures.
Click here for a Wikipedia page with more information.
Here are few more photos.