What might she be?

I have a chance to aadopt a beautiful 1-year old dog. She has the exact
markings of a Rottweiler or Black and Tan coon hound but a longer nose
and head shaped more like a Lab and shorter ears than the coon dog.
Any guesses what mix she might be? Weight about 85 lbs, stocky build.
Loves to herd kids, play with other dogs, and play in the water.