Coflein is the online database for the National Monuments Record of Wales (NMRW), offering a vast collection of information on the historic environment of Wales. With its name derived from the Welsh words for memory and line, Coflein provides details on numerous archaeological sites, monuments, buildings, and maritime locations in Wales. The database showcases information such as site names, locations, types, and descriptive text, along with catalog information for archive items.

While the database is continually evolving with digitization efforts, users can contact NMRW for additional records. Coflein also emphasizes the importance of seeking permission before visiting sites and highlights that many are protected by law. It is a valuable resource for researchers, historians, and individuals interested in Welsh heritage, offering a glimpse into the rich historical tapestry of Wales