I recently returned from a trip to North Dakota with my two GSPs. One of the shorthairs will soon turn 16 years old. I thought that last years trip to ND would be his last but he surprised me and made it through the winter, spring, summer and I just had to take him again this fall. His vision and hearing is poor and has lost a significant amount of weight. I would only hunt him for short periods of time--1 to 1 1/2 hours at the most. At times his breathing was labored. He pointed a few birds and retrieved one, but he clearly is no where near where he once was (and neither am I). I observed him stumble at times and he tended to hunt for himself, always hunting into the wind rather than the direction we were walking. This never frustrated or angered me. Although he was not even close to being productive, I couldn't leave him at home-it wouldn't be the right thing to do as he has been traveling west with myself and several others since the late 90's. He has been a significant part of the annual ritual. Leaving him back home alone in the kennel was not an option. As we were packing for the trip, I seriously considered packing a shovel. He survived the trip and appears to be hanging in there. Having said all of this, I was curious if any of you have had elderly dogs continue to travel and hunt with you beyond what is considered a dog's normal life expectancy?