Annadorn Dolmen is a dolmen sited at the Buck's Head near Loughinisland, in the townland of Annadorn. Nearby you can find the old Annadorn school and post office in County Down, Northern Ireland. It is on the north-east shore of Loughinisland Lake, on a hillock overlooking Loughinisland Churches, a group of three ruined churches.[1][2] The site is a State Care Historic Monument at grid ref: J4289 4591.[3] Co-ordinates: Latitude: 54° 20' 29.97" N Longitude: 5° 48' 8.72" W [4]