Field Guides
Field Guides are distributed in PDF format. Accessing the PDF for other than direct download requires that you have installed a copy of Adobe Acrobat Reader. For help with the Acrobat Reader, you may access the About S/M page, or download a free copy of the Reader direct from Adobe.
| Field Guide | Size |
| Aquatic (Freshwater) Mollusks | 6.93 MB |
| Aquatic (Freshwater) Mollusks - Errata Sheet | 7.17 KB |
| Fungi (Handbook of ROD Strategy-One Fungi) | 4.6 MB |
| Fungi (Handbook of Additional Fungal Species of Special Concern in the Northwest Forest Plan [This links to USFS/PNW]) OR see the combined file --> |
4.55MB |
| Terrestrial Mollusks | 1.3 MB |
Please Note: The quality of the photos in these PDF Field Guides is not quite as good as the quality of those in the hard copies.
Last Updated: April, 2006
This is a US Government computer system. Before proceeding, please read this Privacy Policy, this FOIA, this Kid's Policy,and this Accessibility.
If you have problems using this website, please E-mail the WebMaster.
Bensoniella oregana
Photo by Russ Holmes