Amphibians are among the most ancient vertebrate fauna on earth. There are 32 species of amphibians found in Oregon and Washington. Many are strongly associated with freshwater habitats, such as rivers, streams, wetlands, and artificial ponds. Amphibians are of great ecological importance and can be found in all forest age classes. Many amphibian species utilize both aquatic and upland habitats throughout their life-cycle, therefore, they are considered good indicators of habitat quality. Landowners can promote amphibian habitat on their property to improve overall ecosystem health and to support the species themselves, many of which have declining or threatened populations. This publication describes amphibian habitats, which amphibian species are found in Oregon and Washington, common threats, and habitat recommended enhancement techniques.