Asopus
Ἀσωπός
The only river to pursue Zeus for a kidnapped daughter. The coal in its riverbed is the trace.
He is the god of a river flowing through Boeotia, said to be a son of Oceanus and Tethys.
When his daughter Aegina was carried off by Zeus, he was the only river to give chase. Tipped off by Sisyphus, he closed in — until a thunderbolt from Zeus drove him back into his own channel.
That is why, Apollodorus wrote, coal is dug from the bed of the Asopus to this day — the thunderbolt's scar left in the water.
A river famed for its many daughters: the nymph Thebe, who gave her name to Thebes, is also counted among them.
SourcesApollodorus, Library