Are dogs allowed on the trails?

Yes, but NOT in the picnic areas. Trails run through them and dogs are allowed on the trail through.

Yes. It's a good hike for your dog. Not too hard

Yes, normal leash laws apply. When you get home, check your dog thoroughly for ticks and fleas.

Yes

Yes if you go up the AT, but unless the dog is used to aggressive trails don't go up the Major Welch trail