In Ålvik quartz has long been used to produce ferro-silicon. The quartz was collected from the other side of the fjord, from the mountainside above Kvalvikane.
Jondal has one of the country’s oldest slate quarries. Roof tiles have been extracted here since the end of the 1700s, but the quarry is much older. Kvernurdi is mentioned in a diploma in 1421, when Bård Sigurdsson at Torsnes became the owner through a settlement. Already then it must have been customary to cut millstones here.
At Mundheim there is a dangerous stretch of the highway. The mountainside has given way several times in this area. Typically, it happens in the spring, when the frost has loosened its grip.
One of the most magnificent deciduous forests in Hordaland grows along the border with Kvam. The rich growth comes from the phyllite and mica schist bedrock, together with a good climate. Along the fjord the summer is warm but not too dry, and in winter it is not too cold for plants that do not tolerate the frost.
Flowering lime is one of nature's blessings: The nectar gives clear honey. The flower is used as folk medicine. From the inner bark of the lime tree one can make strong rope. Elderly folk can still tell how they got a weather report from the lime tree. If it smelled strong, it was probably going to rain. Lime often grows together with elm, ash and other tree species of the deciduous forest. Pure lime forests are rarer. Granvin has Hordaland's biggest lime forests.