The Botlann dolmen (also called Ty er Mané) is located on a slight hill near the village of Tenat er Velin, about 300 meters from Erdeven on the Rue du Dolmen, in the Morbihan department in Brittany in France.
Of the portal dolmen (French Dolmen à couloir) with its southeast-facing corridor, only the 3.0 × 2.0 meter large capstone on three bearing stones has been preserved. It covers the remains of the approximately 2.0 m wide chamber. Nearby are the Kerzerho stone rows.
