Volunteers and professionals of the “Archaeological Park: Bosnian Pyramid of the Sun” Foundation discovered another chamber in Underground Labyrinth “Ravne” in September 2011. Chamber is located 90 meters from the entrance to the Labyrinth. Its height is 2.20 m and contains five smaller side tunnels 20-50 cm high, sealed with the drywalls. It does have one large entrance over 2 meters in height, also sealed with the fill in material. There is a large sandstone plate In the middle of the chamber 

This chamber is protected now and no further work will be performed. Everything is left the way it was originally found.

First International Scientific Conference on Bosnian Valley of the Pyramids (ICBP 2008) was held August 25-31, 2008 in Sarajevo and Visoko, Bosnia-Herzegovina. Fifty five participants from 13 countries concluded that “Bosnian Valley of the Pyramids was an archaeological location.”

ICBP 2011 will aim to answer what was the purpose of the Bosnian Pyramid complex and Underground Labyrinth Ravne.

International Summer Camp for Volunteers has had seven two-week shifts this season (June-September, 2011). They came from 32 countries and six continents. 

During the last shift (August 28 – September 11) volunteers were working on Bosnian Pyramid of the Suun and Underground Labyrinth “Ravne”. They came from the following countries: Brazil, Estonia, United States, Canada, Denmark, Norway, United Kingdom, Serbia, Croatia and Bosnia-Herzegovina.