PUBS and independent breweries from Huddersfield are joining in a celebration of local beer.
The event, called A Celebration of West Yorkshire Ale, takes place throughout February.
Beer drinkers will have the chance to taste more than 100 different real ales in 150 pubs.
Geoff Amos, licensee of the Three Pigeons pub in Halifax, came up with the idea. He wants to prove old-fashioned brews are as popular as ever.
He said: "The big brewers stop brewing traditional ales and then claim there is no demand for them."
"But demand is not falling in my pub, or in any others that I know."
The 150 pubs taking part in the event are having promotions on ales brewed in West Yorkshire.
Each pub has been given a copy of a booklet listing 16 small breweries and the ales they make.
It will help them choose which beers to stock during the month.
Among the breweries taking part are the Anglo Dutch Brewery in Dewsbury, the Barge and Barrel Brewery in Elland, Linfit Brewery in Linthwaite, Riverhead Brewery in Marsden, the Sunset Cider and Wine Company in Dewsbury and the Goose Eye Brewery in Keighley.