The Danish Agency for Culture keeps a national register of sites and monuments.
In Denmark, there is a long-standing tradition for registration of sites and monuments. In 1873, the National Museum of Denmark launched a nationwide project to map burial mounds, megalithic tombs, runic stones, and other archaeological sites. This mapping is the basis of the current digital register.
The current register holds information on all known sites, monuments, and archaeological finds, comprising more than 170,000 finding places, and approx. 17,000 shipwrecks and submarine Stone Age settlements.
Obligation to Report
Under the Danish Museum Act, the museums have an obligation to report new finds and activities to the Danish Agency for Culture. This increases the register considerably every year. The register can be accessed here: "Sites and Monuments". It is in Danish only.