Not an axolotl, but mud puppies live as far north as Canada and have external gills: https://en.wikipedia.org/wiki/Common_mudpuppy
Olm in the Balkans: https://en.wikipedia.org/wiki/Olm picture: https://commons.wikimedia.org/wiki/File:P_anguinus-head1.jpg
Very cool but yes very much not an axolotl.
An axolotl is a salamander that has evolved neoteny (imagine a frog staying as a tadpole its whole life). It's also specifically adapted to a specific lake system in Mexico City. If it is kept in water under 57°F (14°C) it will die in a few days. They are also extremely sensitive to changes in the water quality or chemistry. It's not clear that this one will even survive after being rescued
I’m surprised no one is bringing up the possibility that this is just a salamander in its axolotl looking stage of life.
FTA: the nine-inch Mexican axolotl
There aren’t many baby salamanders that size, but https://en.wikipedia.org/wiki/Chinese_giant_salamander#Breed... says “external gills remain until a length of about 20 cm (8 in) at an age of 3 years”, so it could be. I wouldn’t know whether these look similar, though.