Skip to content

BuildingSoil.org

Healthy soil tools for contractors, builders and developers. Includes Washington soil best management practices requirements, guides to stormwater mitigation and soil restoration, and homebuyer factsheets.

Oregon State University: Trees of the Pacific Northwest

This site provides assistance with identifying common conifers in the Pacific Northwest. It includes information about specific genera, user-friendly dichotomous keys, and a mystery tree section where you can test your knowledge.