Keep walls uncovered during Oswestry Castle dig
The walls of a medieval keep are slowly being uncovered as part of a project to excavate a town's castle.
A team of archaeologists and volunteers have been on site at Oswestry Castle for the last week and have revealed a large section of the ancient building.
And they say work so far has been better than anticipated.
The Oswestry Castle Research Project has just been awarded a £32,300 grant from the Heritage Lottery Fund to research the castle's past.
Andy Roberts, who is in charge of site operations, said: "We've uncovered something very large but is not quite clear what it is yet," he said. "We think it might be a door, but it is obviously a late addition to the keep.
"We know the keep is a square building which is at least three storeys high so we've got a long way to dig down yet but we've made really good progress so far.
"When we started this project three years ago it was just speculative that there might be something here. We were looking and hoping for it, but it's been much better than we anticipated."
The team will be on site at the castle, behind Oswestry Guildhall, until September 22 and visitors are welcome to see the archaeologists at work.
There is an information officer on site during the excavation to explain what the group is doing on the day.
The HLF grant will also allow the project to undertake further excavations in 2018 and 2019 and there will be opportunity for more volunteers to help with these digs.