The site known as Mohorov is located not far from the Bay of Blatna, approximately halfway between Omišalj and Njivica on the island of Krk. It is located in an area with a natural slope from northeast to southwest, at the foot of Veli vrh – possibly a prehistoric or protohistoric hillfort. Archaeological investigations of the Mohorov site have so far been conducted on two occasions, in May 2004 and September 2005. After both investigations, the walls preserved in elevation and the architectural remains found during the investigations were conserved.
Excavations in September 2005 allowed a better insight into the purpose if the building on the Mohorov site. It was a rural complex with several rooms. The central rectangular building (20 × 9 m) has three annex rooms on its western, eastern, and northern side.
From the name of the site and the results of archaeological exploration, this building should be dated to a wider period between the end of the 5th century and up to the 7th century. The cult of Saint Hermagoras began in Aquileia at the beginning of the 5th century. The excavations confirmed the assumption, but also made possible the dating of the entire monument to Late Antiquity – the end of the 5th century and judging by the pottery up to the 7th century.
The building was abandoned during the early Middle Ages. The roof, which was made of tegulae and imbrices, was removed, and the floors fell apart at an unknown moment (during the early Middle Ages).
All the above-mentioned characteristics classify the building as a late antique rural free-standing and self-sufficient building. The building had several rooms on the north, west and east sides. The pieces of slag prove that, at least for their own needs, they also processed metal and probably made nails, tools and similar items of daily use.
Remains of material culture found during survey point to the existence of a small metallurgical workshop and other masonry buildings by the sea in the bay of Blatna, and perhaps a small cemetery that belonged to the local community (Morana Čaušević 2006, Hrvatski arheološki godišnjak 2/2005, 268-270).