Well if it is a snapper, it will get very big and dangerous within a few years. They can get up to 12" long and require a very large shallower aquatic home, something like a pond would be best. They also have very dangerously powerful jaws that are capable of amputating an adult's fingers when they're that big. The other thing that they are notorious for is their long fast necks. They can lunge their heads halfway back over their body making it impossible to pick them up from the sides and very hard to hold.
So, with that in mind, if you can't find someone who is able to provide for and deal with such a creature, it would probably be best to release it in a nearby pond or stream.
It's quite possible that the mother snapper walked for a mile or more to lay her eggs, especially if it was during a wet time of year. I guess that's how they spread their genes. Sometimes they are able to find a new source of water, other times they don't.
