The Brief A runaway mini donkey was tracked down Tuesday night in Holly. The Michigan State Police didn't exactly find a needle in a haystack Tuesday night when a mini donkey went missing from a Holly farm - but the comparison is close. The backstory:Dolly the mini donkey made a break for it, escaping through an open gate to her pasture. The hope was that Dolly would be intercepted in the area of I-75 and Holly Road before she could make it to the freeway. "We have located Potato the lost dog, cows along I-75 and now Dolly the miniature donkey.