Staff at Alton Towers are trying to find homes for 200 gnomes left behind by visitors.
A gnome crèche has been set up at Alton Towers
Bosses at the Staffordshire attraction offered free entry to anyone who arrived accompanied by a gnome throughout May.
The offer was in response to a book which criticised Alton Towers while praising attractions such as Gnome Magic and the British Lawnmower Museum.
A spokesman said they had "unwittingly created a gnome mountain".
The book focuses on the underdogs of British tourism and offers an alternative to "going round a rollercoaster at a hundred miles an hour with ice cream in your hair".
Mike Lorimer, from Alton Towers, said: "Undoubtedly, the crazy, thrill-inducing world of a theme park is not for everyone, but with 2.3 million visitors per year, they clearly appeal to a large number."
In response to the book, bosses offered more than 1,000 visitors a free entry ticket if they arrived at the park with a gnome.
"But the adrenaline from the rides must have gone to their heads as a great many of them have forgotten to take their gnomes home at the end of the day," added Mr Lorimer.
"We now have a mini colony of gnomes alone."
He said a gnome crèche had been set up for anyone in need of a bearded ornament for their garden.