The Shrine may not have had a traditional building, rather it was a paved and an open air shrine. The altar, dedicated by M. Hispanius Modestinus c. AD 213, was inscribed identically on two sides, and stood on a pedestal indicating it was out in the open, and meant to be walked around. It is likely that this shrine was built during a period of disuse of the Mithraeum as it was located so close to the Mithraic Temple. The building of the second Mithraeum reused materials from the Shrine to the Nymphs and Genius Loci, but preserved the altar. The shrine has a destruction layer around AD 300, roughly the same time as a destruction layer at the Temple to Mithras. The third site was 'Coventina's Well', a centre for worship of the Romano-British goddess Coventina. This sanctuary, discovered by Clayton in 1876, is the source of the stream. The well is known for the findings of over 13,000 coins, sculptural reliefs, and altars. It was built c.AD128-133, during the construction of the Vallum, in order to help control the water level of the area, it is likely after this it became associated with Coventina with the height of the cult being in the late 2nd to early 3rd centuries when the Batavians were stationed at the fort. No remains of the nymphaeum or well are now visible. Ownership Having been in private hands for many years, the fort, which is a scheduled monument, was gifted to the nation in January 2020 by Jennifer Du Cane, whose family have owned the site since the 1950s. The fort is now in the ownership of Historic England and administered by English Heritage. References External links Brocolitia at http://roman-britain.co.uk/ BROCOLITIA FORT on the line of Hadrian's Wall as it exists today Mithraea Roman fortifications in England Roman sites in Northumberland Forts of Hadrian's Wall Villages in Northumberland Roman religious sites in England Archaeological sites in Northumberland Former populated places in Northumberland