It was probably near Marathon, since it is said to have obtained its name from a woman, Hecale, who hospitably received Theseus into her house, when he had set out to attack the Marathonian Bull, which was ravaging the Tetrapolis.
It contained a sanctuary of Zeus Hecaleius.
[1][2][3] The site of Hecale is tentatively located near modern Koukounarti.
Dictionary of Greek and Roman Geography.
This article about a location in Ancient Attica is a stub.