Ceto minor Oceanid also named Ceto, or with various mythological beings referred to as "ketos" (plural "ketea"); this is a general term for "sea monster" in Ancient Greek. Hesiod's "Theogony" lists the children of Phorcys and Ceto as Echidna, The Gorgons (Euryale, Stheno, and the infamous Medusa), The Graeae (Deino, Enyo, Pemphredo, and sometimes Perso), and Ladon, also called the Drakon Hesperios ("Hesperian Dragon", or dragon of the Hesperides). These children tend to be consistent across sources, though Ladon is sometimes cited as a child of Echidna by Typhon and therefore Phorcys and Ceto's grandson. The Scholiast on Apollonius Rhodius cites
Three Sisters (Oregon) Geological Survey improved monitoring in the immediate area. The Three Sisters are at the boundary of Lane and Deschutes counties and the Willamette and Deschutes national forests in the U.S. state of Oregon, about south of the nearest town of Sisters. The three peaks are the third-, fourth-, and fifth-highest in Oregon, and contain 16 named glaciers. Their ice volume totals . The Sisters were named Faith, Hope and Charity by early settlers, but are now known as North Sister, Middle Sister and South Sister, respectively. The Three Sisters Wilderness covers an area of , making it the second-largest wilderness