Originally Posted by WV
You do the same thing you would do when hiking with other people: adapt your route to the abilities of the weakest hiker - with the important difference that you must be especially mindful, because dogs don't complain when they are uncomfortable, and they will ignore real pain just to be with their humans. There are incredible places to visit that can be enjoyed at a pace of two miles per day. It can be tough to stop challenging yourself a bit each time you head out. Take up fishing.
Good advice there! I agree with WV. I'm afraid a pulk or a roller pack or a sling or a baby carrier will just cause great discomfort to your little buddy. He'll tolerate it but would you really want to do that to him? Of course not! Just adjust your trips to his ability--I would definitely NOT push the envelope with him either. Stay WELL within his abilities to account for the difficult terrain and all the "side trips" pooches take. An easy walk for him will be a great adventure that he'll enjoy very much! And his company will give you great joy on the trail too! Thanks for taking such good care of your little guy.