HERITAGE chiefs are throwing open the doors of one of the region's lesser-known historic gems with the appointment of a "key-keeper".

Greta Wass, from West Tanfield, near Ripon, North Yorkshire, has taken on the role at the 15th Century Marmion Tower, a rare medieval gatehouse which once guarded a ferry crossing in the village on the River Ure.

She will keep an eye on the monument and ensure there is daily access to its interior, which provides a medieval atmosphere for history lovers.

John Hinchliffe, English Heritage's assistant regional director, said: "We have over 30 sites in Yorkshire and key-keepers fulfil an essential role at the smaller properties.

"Since the last key-keeper retired eight months ago, the tower's interior has been closed. But now it's back on track to offer a unique glimpse into bygone times."

Marmion Tower was originally a gatehouse for now demolished Tanfield Castle, a fortified manor house built by wealthy landowners, the Marmion family.