The investigations undertaken between 2003 and 2007 covered a total of 3600 m2 and saw the removal of over 4000 m3 of soil. In addition to the area of the ancient lake basin and immediate area, the surrounding wooded area was also looked at. As is known from the 19th century documentation and confirmed by the recent excavations, the majority of the work undertaken between 1838 and 18939 concentrated on the regimentation of the waters, draining of the lake, and above all the recovery of the archaeological materials. These operations recovered an extraordinary number of finds: 650 bronze votive figurines, 1000 pieces of _aes_ _rudis_ and 2000 arrow heads. All trace of most of the 1838-39 finds is now lost as the artefacts were sold by the Company set up to undertake the work and there is no documentation regarding the sales. During the more recent archaeological investigations at the Lago degli Idoli, unexpected and numerous finds emerged, some of great importance. Of particular interest, the discovery of ten lithic artefacts (which together with other tools attest the occupation of the area in very early times), in addition to two small laminated gold bull’s head protome and two glass paste beads, the first attested examples of this material. Moreover, about 100 examples of bronze votive figurines representing worshipers, including a number of high quality examples in a very good state of preservation. About 30 bronze votive heads were found, together with 37 anatomical votives, which allude to the practice of the _sanatio_. These bronze votives included eyes, hearts, legs, feet, arms, and hands, examples of which are present in almost all votive hoards in northern Etruria. The figurines from the site have a long chronology, from at least the 6th to the 4th century B.C., and can be attributed to productions from different areas: evidence of the great and enduring draw of this sacred site. That the site was assiduously attended is attested by the numerous pieces of _aes_ _rudis_, almost 4,100 examples of various weights and almost all irregularly shaped. One of the twenty bronze coins recovered is of particular interest, of later date (3rd century A.D.) than the other finds. The almost 9000 fragments of iron weapons are awaiting study. Ceramic finds were also present although in limited quantity. The only completely reconstructable form was a grey bucchero miniature bowl.