From the UNESCO site:
Located on Iceland’s west coast, the Snæfellsnes Biosphere Reserve is a landscape of striking contrasts, encompassing volcanic peaks, lava fields, wetlands, grasslands, coastal cliffs, and the iconic Snæfellsjökull glacier. Known as “Iceland in a nutshell,” the biosphere reserve contains over 70% of Iceland’s flora, shaped by three active volcanic systems and centuries of human interaction. It represents a living example of how natural processes and cultural heritage intertwine in a dynamic subarctic environment.