Judging by the description the whole 600ha area at least containing all these polygons
https://www.openstreetmap.org/way/45487764#map=14/59.3703/24.9662&layers=N
https://www.openstreetmap.org/way/45468647#map=13/59.3510/24.9706&layers=N
https://www.openstreetmap.org/way/477304140#map=14/59.3628/24.9746&layers=N

Unless people actually name it like that today, I wouldn't map it.