“At various locations in the Midwest and East, companies are converting spent limestone mines to subsurface business parks offering a host of advantages.”

http://www.progressiveengineer.com/features/businessUnderground.htm

http://www.youtube.com/watch?feature=player_detailpage&v=eyfz90K6yKo

Underground Facilities or Properties in Missouri and the Midwest.

Center Point Properties KC, MO

“CenterPoint officials project that the $250,000,000 project will result in five million square feet of warehousing and distribution space, and that it will create over 2,000 new jobs. Although the facility only opened in March of 2008, the volume of containers and vehicles now being on- and off-loaded at the site testify to the Center’s coming impact on the local economy. The Intermodal Center property also will see the development of eight million square feet of underground storage space carved out of the underlying limestone rock by Hunt Midwest. The company projects it will invest approximately $250,000,000 over the next several years in creating a massive underground storage facility.”

http://www.grandview.org/index.aspx?page=462

http://www.centerpoint-prop.com/projects/article.aspx?id=212&mode=INFRASTRUCTURE

Parkville Commercial Underground in MO.

http://www.park.edu/pcu/

Space Centers in KC, MO

http://www.spacecenterinc.com/real-estate/kansas-city.html

Subtropolis KC, MO

http://www.youtube.com/watch?v=3HG9QkbcKvY&feature=player_embedded

Springfield, MO

http://www.springfieldunderground.com/underground-tour/

http://www.youtube.com/watch?v=l5-az_zePko&feature=player_embedded

Marengo, IN

http://www.marengowarehouse.com/

http://www.youtube.com/watch?v=ErudvqUtde0&feature=player_embedded

Crystal City Underground

http://www.crystalcityunderground.com/Existing_Facilities.html

Louisville, KY

http://www.louisvilleunderground.com/

St. Louis

http://www.slcec.com/10-12-09-the-perfect-center-missouri.html