| Trigger 4 | |
|---|---|
_-_02.JPG) The sculpture in front of the Studio Art Building on a snowy day in February 2014 | |
 | |
| Artist | Lee Kelly |
| Year | 1979 |
| Type | Sculpture |
| Medium | Cor-Ten or mild steel |
| Dimensions | 3.7 m × 4.7 m × 3.0 m (12 ft × 15.5 ft × 10 ft) |
| Condition | "Treatment needed" (1994) |
| Location | Portland, Oregon, United States |
| 45°28′49″N 122°37′33″W / 45.48035°N 122.62578°W | |
| Owner | Reed College |
Trigger 4, also known as Trigger Four, is an outdoor 1979 steel sculpture by Lee Kelly, located on the Reed College campus in Portland, Oregon.