The Siltamäki Area Park is a unique open landscape park in Helsinki, which is a typical example of park design in the 1970s. The park stands apart from its surroundings as a distinct entity whose effect is based on long vistas delineated by vegetation and hillocks. The 14-hectare park was constructed in stages, and a Frisbee golf course was added later.
The mounds are formed from the earth formations created when Siltamäki was built. Over the Kerava River, which flows along the edge of the park, there are spectacular views towards the cultural landscape oh Helsingin pitäjän kirkonkylä. Plantings of conifers were made with surplus saplings.
The park has a small range of tree species, in keeping with the ideals of the time. The planting areas are different from one other, which brings variety to the park. There are firs (Abies), larches (Larix), Serbian spruces (Picea omorika) and birches (Betula) in the planted areas. The azaleas (Rhododendron) planted in 1980 are from the plant breeding project of University of Helsinki. In the 1990s, Wych elm (Ulmus glabra), English oak (Quercus robur), Douglas fir (Pseudotsuga menziesii), Swiss stone pine (Pinus cembra) and Lime trees (Tilia) were planted.
A park management plan was drawn up for the Siltamäki area park in the summer of 2010.