A small population of Oregon Spotted Frogs was discovered in the Cascade-Siskiyou National Monument in 2003.
According to Southern Oregon University biologist, Michael Parker, this species is "the most imperiled amphibian species in the Pacific Northwest" - 2009 Status Report
The Oregon spotted frog (Rana pretiosa, meaning "precious frog") is a member of the frog family Ranidae of order Anura. It is a medium-sized aquatic frog endemic to the Pacific Northwest and historically well distributed in the Puget Trough/Willamette Valley province and the Cascade Mountains of south-central Washington and Oregon. It is relatively rare within its range and is listed globally as vulnerable.