![Industrial History: 1929-1970,1999 Trail/US-66 Chain of Rocks Bridge over the Mississippi river north of St. Louis Industrial History: 1929-1970,1999 Trail/US-66 Chain of Rocks Bridge over the Mississippi river north of St. Louis](https://3.bp.blogspot.com/-kBrsy-NjtHc/Wl_h63YisjI/AAAAAAAA8tg/OLn1wVoOl8ITN3d7ViXhls-BBsdyyGquQCLcBGAs/s1600/26756405_10210816263951941_4892741437841153889_o.jpg)
Industrial History: 1929-1970,1999 Trail/US-66 Chain of Rocks Bridge over the Mississippi river north of St. Louis
![Great Rivers Greenway and project partners invite you to celebrate improvements coming to the Mississippi Greenway at the Old Chain of Rocks Bridge! - Great Rivers Greenway Great Rivers Greenway and project partners invite you to celebrate improvements coming to the Mississippi Greenway at the Old Chain of Rocks Bridge! - Great Rivers Greenway](https://greatriversgreenway.org/wp-content/uploads/2022/10/COR-Perspective-002.jpg)
Great Rivers Greenway and project partners invite you to celebrate improvements coming to the Mississippi Greenway at the Old Chain of Rocks Bridge! - Great Rivers Greenway
![Old Chain of Rocks Bridge in St. Louis, Missouri, over the Mississippi River, location, maps, and history Old Chain of Rocks Bridge in St. Louis, Missouri, over the Mississippi River, location, maps, and history](https://www.route66roadtrip.com/images/postcards/Missouri/chain-of-rocks-bridge-st-louis-missouri.jpg)