The Northern Valais Blacknose Club will present the Northern Stars Show & Sale at CCM Auction in Skipton on Sunday (September 1).
More than 80 Valais Blacknose sheep will be showcased, with high-profile breeders expected to attend from around the UK.
The sheep breed, named for its origins in the Valais region of Switzerland, has grown in popularity thanks to TV shows including This Farming Life and The Yorkshire Farm.
Jeremy Clarkson has also recently purchased a small flock.
Valais Blacknose are used in Switzerland for both meat and wool, but their cute looks and friendly nature also make them popular pets or grass cutters.
Sunday's sale will feature castrated males, lambs born earlier this year, and aged animals ready to breed this season.
The sale will also include two rare Spitti lambs, which due to a genetic anomaly have their colouring reversed, and are said to be lucky.
Jenni Macallister, who appeared on This Farming Life with partner Raymond Irving and is one of the original importers of Valais Blacknose, will be judging from 9.30am.
The sale will begin at 11.30am, followed by a flock dispersal sale.
In addition to the usual show classes, a Young Handlers Class will inspire and encourage the next generation.
Spectators are welcome.
Katie Collin, of the Northern Valais Blacknose Club, said: "We are so excited to hold this show & sale at Skipton for the second year.
"The popularity of the sheep keeps growing and growing.
"We have some fantastic breeders here in the UK who are keen to help and encourage people new to the breed."
The sale catalogue is available to browse at https://ccmauctions.com/Sale-Day/Sale-Catalogues
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