Woodbine, MD – Two horses who had been neglected for at least 15 years were discovered on a Maryland farm this week. Their hooves had grown to over three feet long.

18-year old stallion Quest and his companion Rio, an 18-year-old miniature stallion, face up to a year of rehabilitation, according to the Carroll County Times.

The horses were found during a welfare inspection of an unspecified Washington County farm to check on pet pigeons.

Another horse, a miniature mare, had to be euthanized on the property due to her injuries.

Days End Farm Horse Rescue aided the Washington County Humane Society in the removal of the three horses.

“The horses were found in a stall piled high with 3 to 4 feet of manure, where it is suspected that they were locked up for at least 15 years without necessary farrier or medical care,” Caroline Robertson, the development director of Days End Farm Horse Rescue told the newspaper.

“It’s the worst we’ve seen in our 26-year history,” Robertson said. “They could barely move without being at risk of getting tangled in their own hooves.”