The research undertaken at Carona between 2007 and 2009 identified a vast area between 2100 and 2450 m a.s.l., where incised boulders were present. These were boulders of clay sandstone (pelite) which had come away from the mountain face and were of varying dimensions characterised by a flat smooth surface. The flat surfaces had been incised with a metal instrument to produce linear drawings and, very rarely, the figures were obtained using a stippling technique. The incisions formed symbolic motifs (Solomon’s knots, crosses, stars, hearts, scales, grids etc), animals, male and female anthropomorphic figures, warriors and weapons, long inscriptions and medieval and modern dates. The areas with the rock incisions were divided into three sectors. The highest, denominated Le Torbiere (LTB) and Aga (AGA) are situated on the slopes of Mount Aga. The third area, the Val Camisana (CMS) is the valley where the river Brembo runs from its source down to the locality of Armentarga. The incised boulders were numbered and georeferenced, rubbings were made of the incisions and digital photographs taken. In 2009 a small trench was opened by the boulder CMS 1, with the aim of finding traces of occupation, however, to date it has not produced the desired results. The most interesting boulder was in fact the no. 1 of Val Camisana (CMS 1) on which a number of figures comparable to those on 5th century B.C. situlae were recognised, together with a series of inscriptions in the Leponzian alphabet of the 2nd-3rd century B.C. The inscriptions are names, some with patronymic, that were probably, in analogy with the dedications found at the Gran San Bernard pass, ex-votos left by travellers affronting difficult mountain crossings. In fact, the name of the deity Penninus, the Celtic god of mountain peaks and passes, is repeated twice (in the nominative and dative case). The reading of the inscriptions and figures was made difficult by the many cuts that have been made through time on the rock’s surface. However, by using raking light, to date it has been possible to read eleven certain inscriptions. The continuation of research aims to decipher the remaining inscriptions, to record the other boulders and open another small trench close to boulder CMS 1.

In 2010 the archaeological investigation continued along the east and north sides of rock CMS 1, in search of evidence of ancient occupation. This did not produce the hoped for results, due to the intense erosion and hill-wash effecting the zone. An authorised metal detector survey close to rock CMS 1, undertaken to map the dispersion of materials on the slope affected by erosive phenomena, led to the recovery of a bronze fibula of the Certosa type datable to the 5th century B.C., several pieces of aes rude, dating to between the 5th and 4th century B.C, and numerous iron nails of unspecified date. The find sites were registered using a total station, using the same system of coordinates as the 2009 excavation grid. The programme of contact tracing and recording of the incised rock art has mainly looked at the rocks in the Val Camisana. To date 133 rocks with incisions have been identified, numbered and geo-referenced. During the 2010 campaign the rocks CMS no. 39, 51, 54,56, 58, 62, 66 and 67 were identified and recorded. Rocks no. 60, 63, 119, 121 and 123 were also surveyed but not recorded. Rocks no. 53, 55, 57, 61, 64, 65, 68, 69 and 124 were recorded but not surveyed. Furthermore, six Leponzian inscriptions on CMS 1 were checked and are soon to be published. In the locality of Le Torbiere the rocks LTB no. 35, 36, 37 and 38 were surveyed and recorded. In the locality of AGA rocks no. 36 and 37. In the locality of Valsecca (VLS) 28 rocks were identified and geo-referenced. With the aim of making rock CMS 1 visible in its environment to those who cannot actually climb up to it, the PROGETTO AZIMUT made a laser scan which will be used on a digital support that visitors to the museum will be able to consult.

In 2011 archaeological investigations continued at the base of the slope of a small terrace where rock CMS 1 is situated. The aim was to identify any materials transported here by erosion. This intervention, like the preceding ones, did not produce the desired results. The programme of tracing and documentation of the rock incisions involved the boulders in the area of Aga. Here, the data collection for the first 24 rocks was completed, rocks nos. 36, 37, 40, 44, 45 and 48 were surveyed and rocks nos. 31, 34-45, 47-48 were catalogued. In the locality of Le Torbiere, no. 39 was surveyed and no. 41 catalogued. As incongruities resulted in the first round of geo-referencing, all of the rocks were repositioned. In the Camisana area, work concentrated on reading the inscriptions in the Lugano alphabet on rock CMS 1, of which a further 18 letters were transcribed (adding to the 11 that are already published). Surveys in other areas of the valley identified incised rocks. In particular, in the locality of Masoni, along the path leading to the Venina pass, 17 rocks with incised figures and, above all, inscriptions of the historic period, were identified and geo-referenced. At the Lago del Becco a rock bearing a large number of incisions with dates and words and covering a wide chronological span starting from the 16th century, was identified.

La campagna del 2012 aveva come scopo il completamento della documentazione parziale di alcuni massi, soprattutto per quanto riguarda il rilievo a contatto di AGA 29, CMS 73A, CMS 73B, CMS 119 e CMS 172. Si prefiggeva, inoltre, di verificare con un sondaggio stratigrafico eventuali tracce di frequentazione antropica di una struttura a recinto quadrangolare (dial. baréch), formata da un poderoso muro di enormi blocchi di roccia, adibita probabilmente, almeno per una parte della sua storia, a ricovero per animali. Si è proseguito, inoltre, nella decifrazione e nella lettura delle iscrizioni in alfabeto di Lugano incise sul masso CMS1. È stato effettuato un _survey_ al passo Cigola, dove, tuttavia, non sono state localizzate rocce incise. In collaborazione con il CNR-IDPA di Dalmine, Università degli Studi Bicocca Milano si è provveduto ad effettuare nuovi carotaggi nella torbiera principale, per ottenere ulteriori campionature da sottoporre ad analisi pollinica e datazione C14.