Caption:Heather Jean Bryham admires a large, old pūriri tree on the family farm near Waipū.Photo credit:RNZ / Peter de GraafLarge, old pūriri trees like this one on the Bryham property make an ideal home for many native species.RNZ / Peter de GraafSisters Heather Jean Bryham, left, and Linda Bryham. The current State Highway 1, in the background, passes between the two largest remaining stands of kahikatea.RNZ / Peter de GraafThe family was allowed to keep part of the forest where Mossy Bryham’s ashes are scattered when the current State Highway 1 was built in the 1990s.RNZ / Peter de GraafHeather Jean Bryham with one of the larger kahikatea trees on the family property.RNZ / Peter de GraafA smaller stand of kahikatea next to the existing State Highway 1.RNZ / Peter de GraafThe understorey is dense in a stand of kahikatea fenced off for the past 60 years.RNZ / Peter de GraafA pair of kahikatea are silhouetted against the sky.RNZ / Peter de GraafThe nocturnal Hochstetter’s frog lives near streams on the Brynderwyn Hills.John Johns / Archives New Zealand - Te Rua Mahara o te KāwanatangaState Highway 1 over Northland’s Brynderwyn Hills was closed repeatedly in 2023 and 2024 due to major slips.Supplied/ NZTA