Snail paced goat..

[GoldenTreePackGoats]

You're right not to tie Yukon to Huck's collar. Huck isn't strong enough to pull along a reluctant goat right now and you don't want to discourage him because then you'll have two slow goats. Do you carry treats? Often when we train babies to lead I'll "bump" the leash when they start to drag, and as soon as they come forward in response to the pressure I give them a treat. You'll need to train Yukon one-on-one so the other goats don't distract him from the lesson or try to take his treat.

Is Yukon mellower or lower on the pecking order than your other two? Even if the other goats aren't mean to him, being lower than the others means he may not like having to walk close to them when he's on a leash. When he's loose, not only can he walk a little further from the others while still keeping up, but he also knows he can jump away if one of them were to give him the hairy eyeball. Lower goats don't walk ahead of more dominant ones, so trying to keep Yukon up with you would make him feel out of place if he's not the leader. You might try using a longer leash on him and see how that goes.

He has been the goat that wants to work and be with me. Yukon has always been at the top of the pecking order, recently Pluto has challenged him and they are working it out. But this happens with or with out other goats, when it's just me and him, or any combo of goats and people. This is new behavior that has been going on for about 2 weeks, but we've been strolling the neighborhood for 3 months. My dog following behind (minding his own business) is the only thing that gave slack in Yukon's lead this week. I'll give him a bump and he'll speed up get his reward and slow down again. Should I just be doing this from now on until I see improvement?

Our walks aren't strenuous, a max of 4 miles typically 2 miles, with 1 or 2 hills. I never push them to go my natural pace but 2mph seems fair on flat ground. 

It's very frustrating. I keep checking all his vitals, limbs, hooves, anything that might explain whats making him just not want to but he seems ok. This all being said he will walk with me on a lead, there is just constant pressure but he's not being dragged. Kinda hard to explain. 

Thank you by the way. Any ideas are appreciated.