Table of Contents
Mount Ossa rises in Thessaly under the modern name Kissavos.
What is Mount Ossa? It is the middle peak in the Thessalian sacred chain between Olympus and Pelion.
In Greek myth, Otus and Ephialtes set this mountain on Olympus when they tried to stack peaks toward heaven.
That stacking story is the classical Aloadae story.
The Aloadae are Otus and Ephialtes, Poseidon’s oversized sons.
They treat mountains as a ladder.
I keep that giant ambition open to paleo-contact.
I put that reading next to the Nephilim.
What it is
Mount Ossa (Greek Όσσα) is a mountain in Thessaly, Greece, in the Larissa regional unit.
Thessaly is a region in mainland Greece.
Its highest peak stands about 1,978 m (about 6,490 ft).
Mount Olympus lies to the north. Mount Pelion lies to the south. The Aegean sits to the east.
The Vale of Tempe (Tempe Valley) and the Pineios separate Ossa from Olympus.
The Vale of Tempe is the narrow pass between those two peaks.
Ossa is the middle peak in the Aloadae stack.
The order is Olympus at the base, then Ossa, then Pelion, then heaven.
Names and geography
Ancient Greek names the peak Ossa.
Modern popular Greek uses Kissavos (Κίσσαβος).
Kissavos has been the common name since medieval centuries.
Ossa was revived in modern usage.
The mountain carries forests, gorges, and rich plant life.
Those forests and plants are real. They do not replace the myth.
Tempe Valley is the sacred pass between Ossa and Olympus.
When the Aloadae stack the peaks, they do it on this ground.
Sister peak in the same myth: Mount Pelion.
The Aloadae stacking (Otus and Ephialtes)
The main classical story for Mount Ossa is the story of the Aloadae.
The Aloadae are Otus and Ephialtes.
Their mother is Iphimedeia.
Their divine father is Poseidon.
Aloeus is the mortal husband in the story.
Homer says the twins grew enormous by nine years of age.
They threatened war on the gods.
They tried to set Ossa on Olympus and Pelion on Ossa so they could scale heaven.
Homer, Odyssey 11.305–320 (Butler):
After her I saw Iphimedeia wife of Aloeus who boasted the embrace of Poseidon. She bore two sons Otus and Ephialtes, but both were short lived. They were the finest children that were ever born in this world, and the best looking, Orion only excepted; for at nine years old they were nine fathoms high, and measured nine cubits round the chest. They threatened to make war with the gods in Olympus, and tried to set Mount Ossa on the top of Mount Olympus, and Mount Pelion on the top of Ossa, that they might scale heaven itself, and they would have done it too if they had been grown up, but Apollo, son of Leto, killed both of them, before they had got so much as a sign of hair upon their cheeks or chin.
A fathom is a long measure, about the span of a man’s arms.
A cubit is a shorter measure, about a forearm.
Stack order in Homer: Olympus at the base, Ossa on Olympus, Pelion on Ossa, then heaven.
In Homer, Apollo kills both twins before they mature.
Pseudo-Apollodorus tells the same stack and adds more detail.
He adds a sea-and-land swap threat, the wooing of Hera and Artemis, and Ares in bonds.
He also names a different killer.
Apollodorus, Library 1.7.4 (Frazer / Theoi):
Poseidon met her and begat two sons, Otus and Ephialtes, who are called the Aloads. These grew every year a cubit in breadth and a fathom in height; and when they were nine years old, being nine cubits broad and nine fathoms high, they resolved to fight against the gods, and they set Ossa on Olympus, and having set Pelion on Ossa they threatened by means of these mountains to ascend up to heaven, and they said that by filling up the sea with the mountains they would make it dry land, and the land they would make sea. And Ephialtes wooed Hera, and Otus wooed Artemis; moreover they put Ares in bonds. However, Hermes rescued Ares by stealth, and Artemis killed the Aloads in Naxos by a ruse. For she changed herself into a deer and leaped between them, and in their eagerness to hit the quarry they threw their darts at each other.
Stack order in Apollodorus: the same classical order. Ossa on Olympus. Pelion on Ossa. Heaven above.
In Apollodorus, Artemis kills the Aloadae on Naxos by the deer ruse.
Hermes frees Ares.
I keep both tellings.
Homer names Apollo.
Apollodorus names Artemis.
The mountain order stays classical either way.
Meaning: Poseidon’s sons are giants who treat Thessalian peaks as a ladder so they can attack the gods.
That ambition matches the scale of the Nephilim.
The story is told in Greek, with Greek peaks, Greek gods, and Poseidon as father.
I put that reading next to the Nephilim.
I also put it next to Poseidon on deities associated with fish, water, and the sea.
Gigantomachy (separate cycle)
The Gigantomachy is the broader war of the Olympians against the Giants.
In many tellings those Giants are Gaia’s children.
That cycle is related to mountain struggle and cosmic hubris.
It is not identical to the Aloadae story.
Popular summaries sometimes say Giants piled Ossa on Pelion.
Classical Aloadae texts are clearer.
They say Ossa on Olympus, then Pelion on Ossa.
Homer and Apollodorus set the stack order.
Gigantomachy is a related cycle. It does not rewrite the Aloadae order.
I put sacred-mountain struggle next to Mount Zaphon and the Zeus peak trail on Mount Lycaeus.
How I use this in my research
I use Mount Ossa as the middle peak in the Olympus, Ossa, and Pelion chain. I also use it as the Aloadae ladder toward heaven.
- I put Thessalian stacking next to Mount Pelion.
- I put Poseidon-blood giants next to the Nephilim and Poseidon’s sea-god fatherhood on deities associated with fish, water, and the sea.
- I put cosmic hubris and mountains as divine seats next to Mount Zaphon and Mount Lycaeus.
- Poseidon as father of oversized rulers rhymes with Poseidon’s Atlantis line. It is rhyme, not identity.
FAQ
What is Mount Ossa?
Mount Ossa (modern Kissavos) is a Thessalian mountain between Olympus and Pelion. Its highest peak is about 1,978 m. In the Aloadae myth, Otus and Ephialtes set Ossa on Olympus and Pelion on Ossa to scale heaven.
What is Kissavos?
Kissavos (Κίσσαβος) is the modern popular Greek name for Mount Ossa. Ossa is the ancient name. Both point to the same Thessaly peak.
Did the Giants stack Ossa on Pelion?
Popular Gigantomachy summaries often say so. Classical Aloadae texts in Homer and Apollodorus say Ossa on Olympus and Pelion on Ossa. I keep that classical order. I label Gigantomachy as a separate gods-vs-Giants cycle.
Who were the Aloadae?
Otus and Ephialtes, sons of Poseidon and Iphimedeia. Homer says Apollo killed them. Apollodorus says Artemis killed them on Naxos by a deer ruse. Both sources share the same mountain stack toward heaven.
How do I use Mount Ossa in research?
I use it as the middle Thessalian peak and as the Aloadae heaven-stacking trail. I put it next to Mount Pelion, Mount Lycaeus, Mount Zaphon, the Nephilim, and deities associated with fish, water, and the sea.
Related on this site
- Mount Pelion: Sister peak in the same Aloadae stack; Thessaly neighbor.
- Mount Lycaeus: Sacred Greek peak (Zeus Lykaios); mountain-as-divine-seat lane.
- Mount Zaphon: Soft cosmic / chief-deity mountain struggle neighbor.
- The Nephilim: Giant / oversized offspring lane beside the Aloadae.
- Deities associated with fish, water, and the sea: Poseidon as Aloadae father / sea-god bridge.
