That’s a Treeing Walker Coonhound. We have one. Tri-color with blue ticks amongst the white. This breed actually climbs trees. He’s working-dog size, weighing in at 90 and it’s all muscle. He doesn’t lick us, he just “noses” us with his monstrous black nose. He can sniff out a brown rabbit 25 yards away and be on point for it almost instantaneously. He is not allowed inside the house until we have removed every possible temptation from his reach, which is considerable, thanks to his ridiculously long legs and wide webbed paws, which he uses like hands. He is broad-chested and large-headed. When he charges, he can knock an adult down. Amazing speed and strength, with a low center of gravity, like a linebacker. He walks with me on neighborhood watch and is a great deterrent.
I took in a female Walker a number of years ago, she’d been put out and was running around in traffic, no car sense at all, generally true of the breed as a whole smart as they are about other things cars just don’t register especially on a scent. Made a pet of her and she took to the indoor life like she was born to it. Loved me with all her heart, knew she’d gotten a second chance I think. She was a licker and I’d love to experience it again but she passed suddenly last year, aggressive cancer. Still hurts to think about it. I’ve had many dogs, all my life in fact, but never one who loved me so intensely.