Yep, looks like a lab/shepherd mix to me. I have one, too. Great dog...please tell me you've had her checked for hip problems and a heart murmur. Mine has a heart murmur that I swear I can hear outside of him. He's half the dog he was now. Seems to be a thing with Labs.
Regards,
Rabbit.
I haven't done anything with her yet, just hoping for none of the genetic problems like you mention. I know that
both labs and shepherds commonly have hip displaysia problems, I'm just hoping that my theory that mongrelization leads to healthier dogs proves true in this instance.