The Cumberland Street Archaeological Site is a heritage-listed archaeological site located at 106–128 Cumberland Street in the inner-city Sydney suburb of The Rocks in the City of Sydney local government area of New South Wales, Australia. The site includes the remains of early convict-era housing dating as far back as 1795, and a modern youth hostel has been built elevated over the remnants. It is also known as The Big Dig Site, Sydney YHA, and the Big Dig Education Centre. The property is owned by Property NSW, an agency of the Government of New South Wales, and it was added to the New South Wales State Heritage Register on 17 December 2010.