Safjället, Nature reserve in Mölndal, Sweden.

Safjället is an 88-hectare nature reserve established in 1991 on a plateau running northwest to southeast, near the border between Mölndal and Gothenburg. Its southwest side drops steeply toward Toltorpsdalen. The woodland is mostly birch with spruce and pine, and three small ponds lie in the western part.

Safjället was pasture for cows until the 1930s, when forest was planted. The reserve, established in 1991, covers 88 hectares and holds several burial mounds, stone settings, two cairns and an ancient fort. Its name likely comes from Söfjället, where Sö was an old slang word for cow.

The name Safjället is said to come from Söfjället, where Sö was an old slang word for cow, recalling the pasture era. Two open fields near Krokslättsskolan are still called Petterssons äng and Olles äng. The 2.5 km illuminated trail is used for jogging and skiing training, and two fire pits are the only places where fires are allowed.

A 2.5 km illuminated exercise trail crosses the reserve and can be reached from every side; smaller paths branch off it. Parking is available at Krokslätts idrottsplats and Krokslättsskolan, next to the trail. Fires are allowed only at the two designated fire pits, and dogs must be kept on a leash all year.

Safjället's name may come from an older form, Söfjället, where Sö was an old slang word for cow, recalling the pasture era. Two open fields near Krokslättsskolan are still called Petterssons äng and Olles äng. Three small ponds lie on the western side, and Ändis, or Änderdammen, is to be restored to wetland because it has no natural dam.