By A Mystery Man Writer
Center for Biological Diversity seeks endangered species protection for Crater Lake newt
The Lake in the Sky - Project Klamath
Crater Lake NP: Administrative History (Chapter 19)
A Century Later: Scientists Study the Impact of Crayfish Introduction at Crater Lake National Park (U.S. National Park Service)
A Volcanic Blue Abyss · National Parks Conservation Association
Crater Lake National Park
Eulogy for a Crayfish We Hardly Knew - Bay Nature
A Volcanic Blue Abyss · National Parks Conservation Association
Crater Lake Research - Crater Lake National Park (U.S. National Park Service )