Here you are able to take part in the research: mark on the map below sites along the Mannerheim Line that you find especially interesting and important for preservation.
Main defensive infrastructure of the Mannerheim Line, all the main permanent fortresses and some field fortifications, have been already mapped. You are welcome to add your comments or interesting historical information to those sites. You can also add new sites to the map and comment on the sites added by others.
Especially well-preserved field fortifications are of interest in this stage of research. These kinds of locations are planned to be surveyed during the second fieldwork phase of the project in spring 2019.