Caves Caves and Canyons Whether by lava flow or river carving or the slow process of erosion, Oregon has a wide variety of interesting earth formations. The caves are from the south and the canyon is in the far east. [Show as slideshow] Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ