Quick Facts
| City | Chicago |
| Country | United States of America |
| Year | 1979 - 1986 |
| Floors | 60 |
| Height | 173.7 m / 570 ft |
| Surface | 102 193 m² / 1 100 000 ft² |
Realization
| Architect |
Skidmore, Owings & Merrill (Bruce Graham) |
| Developer |
PSM International Corporation |
| Engineer |
Skidmore, Owings & Merrill (Fazlur Kahn) |
Building Info
| Address | 446-448 East Ontario Street & 441 East Erie Street |
| Materials |
reinforced concrete |
| Status | Completed |
Notes
The name of the tower is a combination of the street names it is located at.