Horizon looks at the area around Mt. St. Helens 10 years after the volcanic eruption that devastated more 500 square kilometres of forest land in just minutes.
| Title | Legacy of a Volcano |
|---|---|
| Genres | Documentary |
| Release Date | 1990-05-14 |
| Episode Runtime | 01 Hours 00 Minutes |
| Season Number | 27 |
| Episode Number | 16 |
| Production Companies | Unknown |
