# Soil: The foundation of the ecosystem

U.S. Forest Service BMRI-V-5 Soil: The foundation of the ecosystem Pacific Northwest Research Station - Blue Mountain Natural Resources Institute.

- Kind: Educational
- Year: 1994
- By: U.S. Forest Service
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/gov.usda.fs.pnw.bmnri-v-5)
- Licence or status: [CC0 1.0](http://creativecommons.org/publicdomain/zero/1.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

Not offered: its uploader or archive marks it public domain, and nothing the site holds bears that out (its record gives no year, or a year from 1978 on, which no US term has left), so where it is free is not known. Unclear is not offered.