Klein's Chisholm Trail
"Chisholm"
Photo at 6 mons.
DOB 12/29/91
Still going strong at 16 + yrs.
Chisholm is a blue merle male out of old National Stock Dog (NSDR) and Animal Research Foundation (ARF)  bloodlines.  He is most likely the most intelligent dog we've owned and does a great job of keeping the rest of the household in line.
13 1/2 years