The ridiculous event took place after farmers noticed their ewes were going missing over a three-year period.
Despite their tags and identifying marks being removed, the savvy owners were able to pick their wooly pals out of the line-up.
Using the shape of their heads, the way they walked and their colouring, the 14 farmers involved were able to identity 116 of the 151-strong flock.
Ecstatic owners from Cumbria, North Yorkshire and County Durham were reunited with their four-legged friends.
Three people are appearing in court accused of conspiring to use criminal property (the sheep) knowing them to be stolen. The case is still ongoing at Teeside Crown Court and has rocked the farming community in Teesdale, where the three counties meet.
Prosecutor Samuel Faulks was quoted in The Daily Express saying: "You may not think much happens there, but you would be wrong.
"It is alive with sheep farmers and if you have a flock where each ewe is worth £50 to £250 spread across several hundred acres it is important there is trust. If a sheep wanders on to another farm, that farmer is trusted to repatriate the wandering sheep."
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