Mattopohja

Mattopohja is a small, uninhabited island located in the Gulf of Finland, part of the Baltic Sea. Situated approximately 15 kilometers northeast of Helsinki, Finland, it belongs to the municipality of Porvoo. The island covers an area of around 0.3 square kilometers and is characterized by its rocky coastline, dense forests, and limited vegetation.

Historically, Mattopohja has been used primarily for agricultural purposes, particularly as a grazing area for livestock. The island’s name is derived from the Finnish words *matto* (meaning "mat" or "carpet") and *pohja* (meaning "bottom" or "ground"), possibly referencing its fertile soil or the mossy terrain. During the 19th and early 20th centuries, it was occasionally inhabited by seasonal farmers, but it has been largely abandoned since the mid-20th century.

Today, Mattopohja is a protected nature reserve, managed to preserve its natural ecosystem. The island is accessible only by boat, and visitors are encouraged to follow guidelines to minimize environmental impact. Its remote location and untouched landscape make it a popular spot for birdwatching, particularly for species such as the white-tailed eagle and various seabirds. The island also features historical remnants, including old stone walls and remnants of past agricultural structures.

Due to its secluded nature, Mattopohja remains relatively unknown outside of Finland, though it is occasionally featured in local nature documentaries and conservation efforts. The island serves as a reminder of Finland’s rural past and the importance of preserving natural habitats.