The hoard found in Bath, Somerset, is the fifth-largest hoard ever found in Britain and the largest ever found in a British Roman city. It consists of about 17,500 Roman silver coins dating from between 32BC to AD 274. The treasure was found on Bo Street, about 150 meters from the city's Roman baths, built when Bath was a Roman colony, known as Aquae Sulis.
It was discovered in 2008 by archaeologists from Cotswold Archeology on the site of a new pool for the Gainsborough Hotel and Thermal Spa. The Grade II listed building was built in the 1820s from John Pinch Sr. as the United Hospital of Bath and then became part of the Bath Technical College. This site is about 150 meters (490 feet) from the Roman baths and the site of the original temple of Minerva. The site was excavated by James Irwin in the 1860s when the architectural firm of George Phillips Manners and George Phillips expanded the building to make an addition to the hospital.John Elkington Gill. Irwin discovered a Roman bathing complex with a hypocaust floor on the site, but it is not known whether it was a private villa or a public structure.
The Boe Street hoard is the largest hoard ever discovered in Great Britain by a professional archaeologist. The coins were found merged into a large block. It was hidden under the floor of a Roman building near the face of a stone wall, in a small oval hole measuring about 40 cm by 30 cm (16 inches by 12 inches). The location of the find makes it highly unusual, as hoards most often come from rural areas. The hoard was originally thought to have numbered as many as 30,000 coins, but the estimated number was later reduced to 17,400. The hoard appears to have been deposited in the late 3rd century A.D.; coins dating from 32 B.C. to 274 A.D. have been identified by conservators at the British Museum.