The isolated Alban range, that natural stronghold of Latium, which offered to settlers a secure position, would doubtless be first occupied by the newcomers. Here, along the narrow plateau above Palazzuola between the Alban lake (Lagiod di Castello) and the Alban mount (Monte Cavo), extended the town of Alba Longa, which was regarded as the primitive seat of the Latin stock, and the mother city of Rome as well as of all the other Old Latin communities; here on the slopes lay the very ancient Latin districts of Lanuvium, Aricia, and Tusculum. Here too are found some primitive works of masonry, which usually mark the beginnings of civilization.