Evidence pertaining to di indigites is rarely found outside Rome and Lavinium, but a fragmentary inscription from Aletrium (modern Alatri, north of Frosinone) records offerings to di Indicites including Fucinus, a local lake-god; Summanus, a god of nocturnal lightning; Fiscellus, otherwise unknown, but perhaps a local mountain god; and the Tempestates, weather deities.
The town was probably founded by the Roman Emperor Claudius to house workers in the drying of the Lacus Fucinus (Lake Fucino).