What happened in 1972 and 1973? Why?

Asked by Evelinka on 16 May 17:23

Last updated by Jill W on 16 May 17:50

Answered by Jill W on 16 May 17:50

From the text:

In 1972 and 1973, four goats were brought in each year in an effort to repopulate Mount St. Helens.