In the narrow strait which connects the small lake-basins of Sale and
Annone, Stoppani found some piles projecting from a heap of stones in
a depth of 6 or 7 feet of water, which he took to be indications of a
palafitte. In 1877 Castelfranco (B. 307) re-examined the locality, and
came to the conclusion that the submerged piles and stones observed
by Stoppani were merely the remains of a bridge which, at some former
period, connected the peninsula Isella with the southern shore; and so
the matter still rests.