The Baltic Sea Monolith is a partially buried molten monolith in the shape of a "millennium falcon" that was picked up by sonar in the Baltic Sea. The formation appears as a "cement structure", with a curvature that is round and smooth looking. The 3D sonar imaging also picked up many 90 degree angles throughout the formation.[1]


The anomaly is a 60-metre (200 ft) diameter circular rock, possibly concrete, formation on the sea floor of the northern Baltic Sea, at the center of the Bothnian Sea. It was discovered by Peter Lindberg, Dennis Åsberg and their Swedish "Ocean X" diving team on June 19, 2011. The team reported that the formation rests on a pillar and includes a structure similar in appearance to a staircase, leading to what appears as a dark hole corridor. The sonar imaging also reflects numerous 90 degree angles throughout the formation. Linda Moulton Howe postulates that 90 degree angles deep underwater is highly unusual, even non-extant, giving evidence for the artificial structure hypothesis. The samples that were retrieved also give much evidence for Volcanism found throughout the formation, not localized.

THE MYSTERY BENEATH - Baltic Sea UFO - Documentary

THE MYSTERY BENEATH - Baltic Sea UFO - Documentary

Baltic Sea UFO Documentary


A sample recovered by divers was reportedly found to contain limonite and goethite. Israeli geologist Steve Weiner claimed that these materials are "metals which nature could not reproduce itself";[2] however, Swedish geologists Fredrik Klingberg and Martin Jakobsson say that the chemical composition of the sample resembles that of nodules that are not uncommon in sea beds, and that the materials found, including limonite and goethite, can indeed be formed by nature itself. Stone samples have also been analyzed by Volker Brüchert, an associate professor of geology at Stockholm University. According to Brüchert, most of the samples that were brought up from the sea bottom are granites, gneisses and sandstones. Among the samples was also a single loose piece of basaltic (volcanic) rock, which is out of place on the seafloor, but not unusual. "Because the whole northern Baltic region is so heavily influenced by glacial thawing processes, both the feature and the rock samples are likely to have formed in connection with glacial and postglacial processes. [...] Possibly these rocks were transported there by glaciers," explained Brüchert.[3]

The dark holeEdit

On the second dive, divers tried to find the area that presented itself as a "dark hole" on the sonar imaging. However, the waters are so murky that they were unable to pinpoint what is causing that appearance.

Fireplace circleEdit

Linda Moulton Howe, The Baltic Sea Mystery Deepens

Linda Moulton Howe, The Baltic Sea Mystery Deepens

Linda Moulton Howe interviewed Peter Lindberg in 2012, who reported that on the second dive, the divers found a "fireplace circle of stones" on the top and near the front of the "millennium falcon" shaped platform. During the last ice age, sea level on average was 300 feet lower than what it is currently today. Howe suggests that the platform may have been on dry land at one time.

Artificial structure hypothesisEdit

The artificial struture hypothesis proposes that the Baltic Sea Monolith is not a natural phenomenon, but was constructed by hands, either by human or otherwise, based on the following data:

  • Appears as a "cement structure"
  • smooth curvature of the circular platform emerging from underneath the sea bed
  • 90 degree angles appearing in many places on the 3D sonar imaging.
  • "Fireplace circle of stones" on platform

Ocean X TeamEdit

The Baltic Sea Anomaly, The Unsolved Mystery (Episode 1)-0

The Baltic Sea Anomaly, The Unsolved Mystery (Episode 1)-0

  • Peter Lindberg, Ocean X team diver, believed that the Baltic Sea anomaly is a natural formation. He proposed in 2011 that the sonar image of the "dark hole" is only image feedback being subjected to a trick of light. Lindberg confirmed the 90 degree angles appearing throughout the anomaly, even at the suspected "corridor". Lindberg suggested that the angles might be due to the ice, but ultimately does not know how they came to be, while claiming that "90 degree angles are not so strange".
  • Stephan Hogeborn, Ocean X team diver, confirmed in 2011 that the anomaly is not a normal rock. Hogeborn's probable guess is that the formation was produced from within the Earth, through chemical reactions of Volcanism and ice. He is certain that it is not a UFO.


  1. Linda Moulton Howe, The Baltic Sea Mystery Deepens (pub May 27, 2017)
  2. cite web|title=Cirkeln är minst 14 000 år gammal |url= 10, 2013}}
  3. cite web|last=Wolchover|first=Natalie|title='Mysterious' Baltic Sea Object Is a Glacial Deposit|url=, Aug 30, 2012| – Yahoo News|accessdate=31 August 2012|quote= The divers recently gave samples of stone from the object to Volker Brüchert}}

External linksEdit