I see a lot of breed guess threads here, and I thought I'd throw my hat in the ring... This is my pup Granger. He's 7 months old, and flirting with 50 lbs. I'm not sure of his height, but he's pretty tall. His mother (who I saw, she was with him at the rescue), is definitely just your garden variety lab/pit mix, but what on earth is the rest?? My vet thinks maybe catahoula, but I hear dane from people, too. What do you think? 
ETA, the first pics are more recent, the others are from right after we got him, at 16 wks.
http://s592.photobucket.com/albums/tt7/JoMama2boys/

ETA, the first pics are more recent, the others are from right after we got him, at 16 wks.
http://s592.photobucket.com/albums/tt7/JoMama2boys/







I've had dogs my entire life, there has always been at least one canine family member, and I can say conclusively that this is the BEST dog I have ever had. He's wonderful. We're working towards CGC and eventually therapy dog status with a local group right now, and I am very excited, because he's going to be sooo good at it!
