![Google earth image](https://clui-files.s3.us-east-2.amazonaws.com/s3fs-public/styles/presentation_small/public/2022-08/midwst%20controlled%20storage%20quincy%20il.jpg?itok=xiUPmZfz)
This former underground limestone mine, located inside a bluff at Quincy, Illinois near the Mississippi River, between Kansas City and Chicago, opened as a storage facility in 1969. Mostly serving the food industry, it has 2.3 million cubic feet of cold storage, and around 500,000 square feet of dry storage. Known for a time as Underground Warehouses Inc., it was considered as a site for a Google data center at one point.