Slåttdalsskrevan, Canyon in Skuleskogen National Park, Sweden

Slåttdalsskrevan is a cleft about 200 metres long, 30 metres deep and 7 metres wide that splits Slåttdalsberget in two, in the centre of Skuleskogens national park. Its walls are red Nordingrå granite: the left one dark and mossy with a pale grey-pink slab near the base, the right one smoother salmon-pink and tan with vertical striations. The floor is a jumble of grey and reddish boulders with ferns and thin saplings, opening at the far end toward a forested slope.

About 1.2 billion years ago, a diabase dike formed when magma rose from the earth's interior and solidified within the Nordingrå granite. The more easily weathered diabase later eroded away, and successive ice ages, followed by sea and land uplift processes, helped clear out the cleft.

The name combines the Swedish words slått (meadow) and dal (valley) with skreva (cleft), and the alternative spelling Slåtterdalsskrevan is also used. The cleft is a riksobjekt för naturvård, a national site of nature conservation interest, and it lies on the Höga Kustenleden long-distance trail, so hikers pass it as part of that route.

The trail to Slåttdalsskrevan starts at the south entrance of Skuleskogen National Park; the cleft is also on the Höga Kustenleden route. Since June 2023 the passage through the cleft has been closed because of falling rock, and the trail now goes around it over Slåttdalsberget. The cleft can still be seen and photographed from its north and south ends.

The cleft follows a 1.2-billion-year-old diabase dyke: magma rose from the earth's interior and solidified, and the softer diabase then eroded away. Since June 2023 the passage itself is closed to hikers because of falling rocks; the trail now runs around the ravine over the top of Slåttdalsberget, but you can still see the cleft and take photos from its north and south ends.