Sakethan burial mounds are ancient burial place where many Vulcan dissidents, known as the Sakethans, were placed following their deaths. Burial mounds have been discovered on several planets across the Alpha and Beta Quadrant's, including Calder II. In the mirror universe, New T'Karath also was the site of such remnants.
The outside of the mounds were engraved with the inscription which translates as "Go no further, 'lest Mind and Body part for all time". Inside the chamber, a number of lirpa's were hung along the walls as a warning, and traps were placed inside to protect the person or items interred inside.