Category:Volcanoes of Oregon by county
 | This is a non-diffusing subcategory of Category:Volcanoes of Oregon. It includes the volcanoes that can also be found in the parent category, or in diffusing subcategories of the parent. |
| This is a container category. Due to its scope, it should contain only subcategories. |
Subcategories
This category has the following 6 subcategories, out of 6 total.