An ice-shaped route to the sea
Across much of Gävleborg, rounded forest hills alternate with river valleys, lakes and wetlands. Moraine left by the last ice sheet covers broad areas, while meltwater concentrated sand and gravel into eskers and deltas along the larger valleys. The south is generally flatter, with patches of sediment soil creating a small-scale pattern of woodland and open or cultivated ground.
At the Bothnian Sea, the terrain becomes an indented coast of rock, moraine, boulders and deep inlets. Land uplift continues the transformation begun after the ice retreated. Former shorelines now stand inland, and new shallow coastal habitats emerge as the ground rises. Hölick records this history through raised shingle ridges, exposed rock, coastal pine woodland and caves formed among blocks fractured and shifted by glacial movement.
Water within a forest county
Forest dominates Gävleborg without making it uniform. Pine is common on drier heights, whereas spruce and swamp woodland occupy damper ground. Mires, streams and lakes divide the tree cover and connect habitats across the county. Hamra National Park preserves centuries-old pines beside a wide mire complex of fens, small tarns and pine-covered islets, drained by the River Svartån along its natural course.
At Gröntjärn, the most remarkable water movement happens below the surface. The narrow valley contains permeable sand and gravel deposited as the ice sheet melted. Rain filters into groundwater rather than entering through streams, giving the pool its clear turquoise-green colour. The balance between groundwater inflow and outflow produces changes of more than thirteen metres between its highest and lowest recorded levels.
Four places reveal the county’s range
Färnebofjärden follows the Lower Dalälven through rapids, broad waters, islands and floodplain forest. Seasonal floods repeatedly reshape its wetlands and wooded shores, creating a meeting ground for northern and southern species. Hamra preserves a different inland system, where old forest, open mire and unmodified running water retain features that require centuries to form.
Gröntjärn and Hölick bring the story to contrasting edges of the water cycle. One is a groundwater-fed pool within an Ice Age deposit; the other is a coast built from rock, shingle and raised shorelines. Together with the two national parks, they show how bedrock, glacial deposits, rivers, wetlands and the rising sea coast continue to structure Gävleborg’s living landscape.
