Lake Sirino is a small natural reservoir in Basilicata located in a karst sinkhole at the foot of the mountain of the same name, in the municipality of Nemoli, at an altitude of 788 meters above sea level.

The body of water, in ancient times much larger than the present five hectares of the winter flood periods, occupied the lake basin of the Noce in prehistoric times, along the present course of the river and widened upstream from the town of Nemoli reaching Lauria; from there, passing through Trecchina, it circled around the slopes of Mount Coccovello and the adjacent mountain ranges.

The rich flora surrounding it is marked by alders, elms, chestnut trees, poplars, several species of conifers and marsh vegetation.

Its waters are populated by a diverse fish fauna consisting of rainbow trout, brown trout, eel, chub, European perch, tench, carp, crucian carp, barbel, largemouth bass, rudd and bleak.

[5] On the shores of the lake is located the hamlet of Lago Sirino, which hosts some tourist initiatives and some businesses; the place can be reached in a short time from the A2 Salerno-Reggio Calabria highway (Lagonegro Nord/Sud and Lauria Nord), which overlooks it, through the provincial road formerly known as Strada statale 19 delle Calabrie passing from the south through the hamlet of Pecorone di Lauria.