The 2005 excavations involved two trenches. In trench F the road surface was investigated and it was found that its builders had levelled the terrain by dumping layers of earth and then constructed the roadbed. The fragments of black glaze pottery recovered date the road to the first half of the 3rd century B.C. Trench S revealed a chequerwork wall and other walls showing various cuts and rebuilds. The discovery of medieval pottery below layers containing several accumulations of coarse ware, black glaze and refined plain buff pottery datable to the 1st century B.C. may indicate interventions to the chequerwork wall in the medieval period which contaminated the earliest levels. Trench L revealed a well which probably had ritual functions, the presence of Italian sigillata pottery dates it to the Roman period. The road already excavated in trenches C and F reappeared in trench M, built either with or without side drains and borders consisting of walls or alignments of stones. Italian sigillata was also present amongst the material recovered here. In room A, trench R revealed a room with an apse and five tombs, of which four had a ridged covering of tufa blocks and one was open. One of the tombs contained small fragments of coarse ware pottery, an architectural terracotta in the form of a palmette, a small illegible bronze coin and a buckle tongue. Together with the adjoining rooms, Room A was probably used as a sacred enclosure in its last phase. The late burials placed within a structure of Roman date, interpretable as a bath complex, are to be put into relationship with the presence of the nearby church of S. Pietro in Vetere. A mosaic of black tesserae with cruciform geometric decorative motifs in red and white emerged in room A. In the north sector the actual width (80 cm) and continuation of the basalt road was verified (trench N). The material found in the sector east of the road is of Imperial date, whilst that to the west is Republican. It is not possible to prove definitively that the basalt road was constructed in two successive phases, however, its use and abandonment in two different periods seems certain. Trench H involved the brick building situated within the area delimited by the foundations of a late medieval church. In the late antique period the building was altered, giving it a funerary function with “a cappuccino” and “a cassetta” burials placed in the apse. That the structure was re-used for liturgical purposes in the early medieval period is attested by two stone fragments from the first half of the 9th century. (MiBAC)

The 2007 campaign confirmed the exceptional continuity of occupation on the site of Campo della Fiera. In the area of the sacred enclosure a stretch of basalt paving came to light parallel to the south wall of the temple podium identified in 2006. The fill was removed from the western room of the structure, where the _opus signinum_ paving with white _tesserae_ was no longer preserved. This produced fragments of Attic pottery and bucchero, as well as part of a disc-shaped acroteria. East of the temple two altars emerged, one a tufa monolith, the other, of considerable size (circa 3 x 2.80 m), made of trachyte. The materials recovered included Attic black and red figure pottery, Etruscan architectural terracottas and a mould, probably of Magna-Grecian type. Continuity was attested by pottery and Roman coins. East of the enclosure more of the Etruscan basalt road inside the sanctuary was cleared. A stretch of the kerb was cut revealing an earlier road. This was also paved with basalt and was dated to the archaic period by the presence of black bucchero. The road, presumably the via sacra, was intercepted and broken in the Roman period by an _opus reticulatum_ wall which ran around the rooms of a bath building. The exedra of these rooms, with mosaic pavements, were built on top of the Etruscan road whose surface was raised to the height of the foundation offsets of the exedra. Much earlier stone elements were used to raise the floor level, such as Etruscan altars and statue fragments in Greek marble. In the post-Classical period numerous burials overlay both the road and the bath buildings. These were earth graves (6th-7th century A.D.) and “a cassone” tombs of tufa (8th-9th century), which probably related to the nearby church of S. Pietro in vetere, in whose foundations fragments of Carolingian plutei were found. In the South Area, where in 2006 structures relating to a fountain (including a late archaic drip in the form of a lion), to an enclosure in tufa ashlar blocks and to the imposing base of a building (mostly hidden by the hill scarp) came to light. The base was excavated and revealed to be comprised of a foundation of three rows of ashlar blocks set into place end on. In this sector fragments of Villanovan pottery were found in secondary deposition, as they were present in layers with Attic pottery and bucchero. To date no Roman remains have been found in this sector.

The 2008 and 2009 campaigns confirmed the exceptional continuity of occupation on the site of Campo della Fiera, lasting 1900 years. East of the sacred enclosure the basalt paved Etruscan road inside the sanctuary was further uncovered. East of the late Republican _reticulatum_ wall which interrupted the Etruscan road, to be considered a via sacra, the eastern kerb was found, close to which were the foundations of an imposing Etruscan building of which only the lowest course was preserved. A modern road overlying the structures impedes the continuation of the investigation. A make up for a floor surface was found at the level of the foundation offset. Within the make up were fragments of an Attic amphora, Agora 1502 type (second half of the 6th century B.C.); a small deposit with the remains of a bronze lamina from a cart and a bucchero cup were also found. The _opus reticulatum_ wall belonged to bath structures (built in two phases, the latest being of Augustan date) whose exedra, with mosaic pavements, rested on the Etruscan road whose surface was raised to the level of the base of the exedra. To raise the surface several ancient stone elements were used, including Etruscan altars, fragments of Greek marble sculptures and a ram’s head in trachyte. In the post-classical period numerous burials were laid down over the road and bath buildings. The burials were in earth graves (6th-7th century A.D.) and tufa coffins (8th-9th century) and can be linked to the proximity of the church of San Pietro _in vetere_, among whose foundations fragments of Carolongian plutei were also found. In the area of the ‘sacred enclosure’ in-depth investigations were undertaken between the temple podium (decorated cement floor in the Augustan period) and the basalt paved stretch to the south. The foundations, abutted by layers containing black glaze pottery, were identified. The study of the monument built of trachyte, east of the temple with which it is exactly aligned, revealed its function as a deposit for bronze ex-votos. In front of the monolithic tufa altar, covered by layers of ash, an intact thesaurus was discovered with 215 coins, of Republican and Augustan date, in its container (a further six coins were underneath the lid). Inside a quadrangular structure close to the deposit and the altar, materials of 6th-3rd century B.C. date emerged, including bases for bronze statuettes, an Attic oenochoe in the form of a head of Dionysius, a large rams head and the stone base of a bronze statue with a ten word Etruscan dedicatory inscription of archaic date. The dedication is to the divinity Tluschva, named on the Piacenza liver. The offering was made by a woman of Italic origin belonging to the family of the Larecena, owners of a tomb in the necropolis of Crocifisso del Tufo. The last part of the dedication probably contains the Etruscan name of the sanctuary.

The excavation campaign, with the participation of students from various universities, took place between 12th July-13th August 2010. The investigations concentrated on trenches M, N, R and T, obtaining results which clarified certain aspects relating to the site’s earliest phases and confirmed that it is the site of _Fanum Voltumnae_. Trench M was extended to the south: a first layer covered the entire area, dating its definitive abandonment to the 8th-9th century A.D. on the basis of the Forum Ware found within it. Below was a layer containing a substantial amount of material, the dating element being African Red Slip ware. Among this material was a marble sundial and fragments of a terracotta statuette, perhaps identifiable as Artemis. The extension made it possible to check the line of the _temenos_ wall which had undergone rebuilds in distinct periods. In the same trench, in the sector between the _temenos_, donario built of trachyte and a monolithic tufa altar the edges of a rather irregular pit were identified. It was divided into two sectors by a well-constructed feature of reused medium sized stone fragments. The pit was filled in the Augustan period with materials dating from the end of the 6th century B.C. to the late Republican period. In trench N the excavation aimed to trace the continuation of the monumental bases of a building situated in the trench and to examine the nature of the cassone built of tufa slabs adjacent to it. In the interior of the building a floor level was uncovered, on which there was a layer containing a large amount of pottery: cups and small plates in Attic and Etruscan figured pottery and fragments bearing inscriptions of a cult nature. The tufa-built cassone was perpendicular to the southern base of the building and its covering blocks had funnel-shaped holes for libations in them. Inside below a uniform layer of silt was the skeleton of an infant about three years old, which had probably been buried in a wooden coffin. Two artefacts were found in the tomb, a grey ware ladle-dipper and the foot with stamped decoration from a black glaze cup, purposely broken. Up against the southern edge of the burial was a small, coarse ware jar closed by a black glaze cup. It contained burnt bones. In trench R the _caldarium_ was examined. Below layers of collapse occupation layers attested the use of its rooms in the 4th-5th century A.D. as a temporary residential structures. The second room investigated, north of the apsidal pool of the _caldarium_, revealed the collapse of the flooring and of the heating structures which filled the hypocaust. The latter had walls faced with tiles lined with _opus signinum_. The tile lining terminated directly above the floor of the room which was made of similar tiles, on which the square bricks of the _suspensurae_ rested. A new trench (T) was opened with the ain of intercepting the continuation of the walls of the imposing Etruscan building in tufa blocks, partially uncovered in trench N. In the central-western sector of the new trench a stretch of road came to light, built of small cobbles. The chronological contemporaneity of the Archaic cobbled surface found in trench N, below the early Hellenistic basalt paving, appeared to be confirmed by the materials found and the exact correspondence of the levels at which they appeared.

The 2011 campaign saw the participation of students from several Italian universities together with students from Switzerland and America. The evidence uncovered provided further confirmation that the site can be identified as _Fanum Voltumnae_. Trench M was enlarged towards the south to link up with trench L, thus revealing a first stretch of the first _temenos_ wall in this area of the sanctuary, on the same alignment as that uncovered in trench L. The wall in trench M was abutted by a beaten surface of crushed tufa which constituted the floor level. In the same trench, in the sector between the second _temenos_, the trachyte votive table and the monolithic tufa altar, two separate pits separated by a feature constructed with reused materials (bases for bronzes) were excavated. The pits had been filled in the Augustan period with materials covering a long chronological period, beginning at the end of the 6th century B.C. In trench U, adjacent to trench M, the threshold from the entrance in the second _temenos_ wall was excavated and the final stretch of the _opus reticulatum_ enclosure wall emerged. In the 1st century A.D. this wall had reduced the size of the sacred area which was again newly extended in the 2nd century A.D. Therefore, as the investigations stand, four phases for the enclosure can be distinguished: the first in the 4th century B.C., the second in the late Republican- proto Augustan period, the third ( _opus reticulatum_ ) in the 1st century A.D. and the fourth dating to the 2nd century A.D. Further investigation of the _tempietto_ inside the enclosure showed the existence of a phase predating its 4th century B.C. rebuilding. In trench N an Archaic temple building emerged, its width unfortunately compromised by a sewer pipe laid in 1995 (date stamps on pipes). The temple was orientated to the south-west, the short side being about 9 m long. The lowest course was preserved on which there remained clear traces of the second course and of the foundations of the south-west column. This is the third sacred building found at Campo della Fiera. The floor of the _pronaos_ and _cella_ (the latter only partially excavated and continuing in trench T) was obliterated by a layer containing an abundance of materials, in particular Attic black- and red-figure pottery (amphora, kraters, deinoi, kylikes), as well as Etruscan pottery and sherds with inscriptions of a cult nature. The osteological remains found in the “a cassone” tomb in the south-west corner of the temple were examined by Prof. F. Mallegni. The remains, buried in the 3rd century B.C., were those of a child of between 3 and 5 years of age, who had suffered from a growth-arresting illness. The cremated bones, found in a small coarse ware jar covered by a black glaze cup beside the “cassa”, belonged to an infant of 18 months/two years of age. In trench R the excavation examined the _caldarium_ and _tepidarium_, confirming and defining the presence of late antique dwellings built over the ruined floors of the bath building.

The excavation campaign took place between the 30th July and 25th August, with the participation of students from Italian and American universities. The excavation was limited to trench N with the aim of completing the exposure of temple C, identified in 2011. The south-west alignment of the building, 8.5 m wide and 13 m long, was confirmed. The base course was preserved on which traces of the next course and the foundation of the south-western column were visible. The make up for the pronaos and cella floor was obliterated by a layer containing a large amount of archaeological material, in particular Attic red and black figure pottery ( _amphorae, kraters, dinoi, kylikes_ ), as well as Etruscan pottery and fragments of cult inscriptions. The destruction of the building occurred between the end of the 4th and beginning of the 3rd century B.C. and can be correlated with events which between 308 and 280 B.C. saw numerous clashes between Rome and Orvieto. Three infant burials found along the temple’s perimeter also date to this period. The examination of the osteological remains determined the following: the infant buried in the “a cassone” tomb close to the south-western corner, was 4-5 years old and affected by an illness that had blocked its growth; the cremated bones inside a coarse ware jar with a black gloss cup as a lid belonged to an infant aged between 18 months and a year; and the remains in the “ cassetta” burial were those of a two year old child, perhaps a girl as suggested by the associated grave goods. Two pits filled with pottery fragments and animal remains were also found. They probably relate to a sacrifice (perhaps a _suovetaurilia_ ) made at the time the building was consecrated.

Six trenches were excavated. In trench H, the entire perimeter of the church of San Pietro _in vetere_ was exposed, including the discovery of the front facade wall. Trench N revealed another sector of the Etruscan Via Sacra. In trench R, the excavation of a late antique _domus_ was completed. The structure was built on the ruins of the baths, which were also fully excavated following the bathers route from the _apodyterion_ (paved in _opus spicatum_) to the _praefurnium_. In trench M, the trachyte stone votive table and monolithic tufa altar were moved in order to be conserved, both having been damaged by the severe rain that hit the area in November 2012. An interesting terracotta male head with a moulded base emerged from below the tufa altar. Another trench (X) was opened when Etruscan structures were exposed during the re-laying of a modern road. The trench revealed a tufa building which unfortunately continued below the garden of a house. A platform of tufa slabs was found next to one of the structure’s walls. One of the slabs had a hole in it to allow the liquid offerings to the Chthonic deities to sink into the earth. In the South Area, at the highest level reached by the investigations to date, substantial layers of colluvial deposit were removed, thus exposing the remains of Etruscan structures, including a channel taking water to the fountain that had previously emerged at about 4 m lower down.

La campagna di scavo del 2014, che ha visto – come di consueto - la partecipazione di circa quaranta studenti di atenei italiani, olandesi, croati e statunitensi, ha avuto luogo dal 7 luglio al 29 agosto. Le indagini hanno interessato sette saggi. Nel saggio H sono state rinvenute le fondazioni del convento connesso alla chiesa di San Pietro in vetere (probabilmente si tratta dell’edificio del refettorio), inoltre sono state scoperte le basi delle colonne del chiostro sorto sui resti del refettorio stesso. Tali scoperte sono avvenute in significativa coincidenza con il 750° anniversario del miracolo di Bolsena: la pieve che insiste nell’area costituisce l’unica presenza sacra all’epoca esistente nei pressi di quel Ponte del Sole su cui avvenne l’incontro fra il Papa e il Corporale insanguinato portato da Bolsena. Al disotto delle strutture medievali sono emerse le murature in reticolato della _domus_ già nota dalle precedenti indagini. Nel saggio N è stato messo in luce un ulteriore tratto della monumentale Via Sacra etrusca. Nel saggio R si è iniziato lo scavo di un secondo complesso termale ad Est del primo già liberato completamente nel suo percorso: sono stati individuati due _caldaria_, uno dei quali con mosaico in bianco/nero con scena marina. Nel saggio M sono state indagate le aree sottostanti l’altare e il donario, rimossi nello scorso anno ai fini del restauro, interessate da livelli pavimentali della fase iniziale del santuario. Nel saggio X si è proceduto nello scavo della piattaforma in lastre di tufo, una delle quali forata per consentire di disperdere nel terreno offerte liquide destinate a divinità ctonie. Nel saggio C è ripresa l’indagine per verificare l’andamento della strada etrusca Orvieto-Bolsena nei pressi del recinto del tempio A. Nell’Area Sud, alla quota più alta finora raggiunta dalle indagini, una volta sbancati gli strati argillosi createsi a seguito di imponenti colluvioni e sono stati messi in luce resti di edifici etruschi, fra i quali strutture relative ad un grande tempio arcaico ai lati del quale insistono una piattaforma in lastre di tufo ed un’area scoperta acciottolata, probabile terminazione della Via Sacra. Inoltre hanno avuto luogo anche lavori per la valorizzazione del sito: si è proceduto alla protezione del tempio A con blocchi di tufo sollevabili, è stato eliminato il terreno che impediva la completa visualizzazione dello scavo percorrendo la via interpoderale che a Nord fiancheggia il settore di scavo; è stata creata una nuova recinzione dell’area archeologica e sono stati in parte eliminati i depositi colluvionali e le strade che adducevano a due moderne ville che insistono nell’area, consentendo in tal modo l’unificazione della zona scavata nel settore a valle.

This season’s excavations involved work in seven trenches. Walls belonging to a _domus_ emerged in trench H below the medieval structures. Parts of it were already known from previous campaigns, in particular the atrium of Republican date, with red-painted columns, modified in the imperial period, including the addition of _opus_ _sectile_ floors. In trench N-T, structures attached to Temple C were excavated, revealing the presence of a tufa base by which a horse was buried, clearly a sacrifice. In trench R, the excavation continued of the second bath complex to the east of the first: the _caldarium_ and _praefurnium_ of both complexes were discovered, linked by an open-air corridor. In trench M, the investigation continued of the area below the votive table reaching Archaic levels and then natural. In the same trench, levels adjacent to the rear of temple A were explored. In the south area, at the highest level reached by the excavations, the plan of temple B was uncovered, built on a podium that is about 4 m high to the north, surrounded by fountains, colonnades and an open-air cobbled area, probably the end of the Via Sacra. Work continued on finds conservation. In addition, work proceeded on the enhancement of the site with the installation of surveillance cameras for the protection of the site and creation of a visitor’s route with information panels.

During the 2016 campaign, work took place in seven trenches. In trench M, work continued on the difficult task of reconstructing the tufa altar and the trachyte votive table following restoration. Both monuments were replaced in the same position and at the same level as they were when discovered. The votive table was completed with the upper cushion, in whose surface housings are present for bronze decorations. In trench H, excavation continued in the atrium of the _domus_. A high quality floor in _scutulatum_ with an _emblema_ decorated with a four-petal flower was uncovered in a communicating room. A glass-making furnace dating to the 6th century A.D. was found on top of the ruins of the _domus_ . In trench N-T the foundations of a new Etruscan building were partially uncovered. In trench R the excavation continued of the second bath complex situated east of the first: the large mosaic in the _frigidarium_ was found, decorated with Scylla surrounded by sea monsters and dolphins, similar to the mosaic in the Baths of Neptune at Ostia. A deep pool lined with a mosaic of black tesserae opened-off from this room. In the south area, at a higher level than previously reached by the excavation, a kiln for the production of black glaze ware was uncovered. Work continued on the conservation of the finds and on interventions to enhance the site.

This season, in trench M, west of the back wall of the small archaic _sacellum_, a _sondage_ was opened in which cymae and facing slabs from the first phase were found. In _sondage_ H a new room emerged (room 19) in the _domus_, south of the atrium. It was preserved in its late form, presenting an _opus_ _signinum_ floor and painted wall plaster. To the west, a small room (room 7) was uncovered, built between the 3rd and 4th century B.C., in which there was a complex water supply system formed by a series of small channels made of tiles and mortar. _Sondage_ H-W was opened in room 14 were two substantial layers of collapse were removed. The latter contained abundant pottery, mainly African amphora and cooking wares. The complete perimeter of a glass kiln was exposed on the south side of the _sondage_. In _sondage_ N-T, following the removal of the early medieval and Roman levels, the Etruscan building, partially excavated in 2016, was exposed. Its foundations were made up of tufa blocks similar in size and construction technique to those of temple C, but on a different alignment. The dressing-room of the second bath complex came to light in _¬sondage_ R. It was paved in _opus_ _spicatum_ and had a masonry-built bench, faced with red-painted _opus_ _signinum_, below which were 18 niches formed by tiles positioned “a cappuccina”. In the south area, up against the south wall of the trench, the continuation of the perimeter wall of the complex was identified. This was constituted by a single course of tufa blocks, unlike the other sections of the wall that have been investigated, which had a double facing and a drainage channel at the centre in which the mouth of an outlet is visible at the moment. In the north-east corner there was a small channel made of imbrices, which led from the quadrangular vat in the direction of the fountain below the present scarp.

In trench M, excavation continued west of the back wall of the small archaic _sacellum_. The investigation also continued of the small channel crossing the area from south to north, whose fill contained diagnostic material such as thin walled pottery. In trench H, the area west of the facade of the medieval church, revealing a small terracotta channel overlying burials in earth graves. The excavation of the foundation of the facade wall was completed, and the construction technique was seen to be the same as that used for the east wall. As regards the Roman period, the excavations uncovered a mosaic floor in room 13. The excavation of trench H-W involved two extensions to the north and south of areas investigated in 2016-2017. On the south front, the perimeters of rooms 15 and 20 were completely defined and a new room situated to the east, denominated room 21, was identified. The area investigated towards the north gave a more complete picture of room 8; however, the north side has yet to be reached. Following the removal of the early medieval and Roman levels, in trench N-T part of an Etruscan building excavated in 2016 was revealed. It had foundations of tufa blocks similar in proportions and construction technique to those of temple C, but on a different alignment. In trench R, the _tepidarium_ of the Hadrianic bath complex was uncovered. In the second half of the 4th century A.D., shortly before the complex was abandoned, it was converted into a _caldarium_. In the south area, a second circular kiln, smaller than the first, was identified. The two kilns, in addition to having the same morphology were also on the same alignment, with the mouth facing north-south and opening to the north.