Njupeskär, Tallest waterfall in Fulufjället National Park, Sweden

Njupeskär is a waterfall in Älvdalen Municipality, Sweden, that drops over 90 meters down rocky cliffs. The free-falling section reaches 70 meters and creates thick mist that spreads through the surrounding area.

The falls formed over millions of years by headward erosion: the Njupån stream cuts through 900-million-year-old sandstone containing soft diabase that erodes quickly. In 2014 Claes Grundsten questioned the title of Sweden's highest waterfall in the magazine Turist, pointing to unnamed twin falls in Stora Sjöfallet National Park with a greater total drop.

The Njupån stream feeds the fall from the lakes Storrörsjön and Lissrörsjön on the Fulufjäll plateau; downstream, near the hamlet of Mörkret, it empties into the Fuluälven. From the visitor centre at Mörkret, marked trails, some laid out as nature study paths, lead to and around the fall. In winter it draws ice climbers.

A marked trail of roughly two kilometers leads from the parking lot to the falls. Wooden walkways help access in areas with wet or uneven ground.

The sandstone of Fulufjället is about 900 million years old and holds layers of easily weathered diabase. The falls formed, and keep forming, by headward erosion: the stream undercuts the rock step and the brink retreats upstream. In winter the frozen fall is used for ice climbing.