Fröstjärn

Character of the water

Fröstjärn lies in central Sweden — a acidified brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. In summer a thermocline settles around 6 m and splits the lake into two worlds. Acidification has thinned life down to the hardiest few.

The surroundings

The lake lies half-remote, a fair way from the nearest road, tucked into woodland.

Moderately deep (11 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Fröstjärn FVOF. Day permit ~60 kr · annual permit ~300 kr.

• Pike: keep at most one over 75 cm per day.
• Trout & Arctic char: protected during the autumn spawn · catch-and-release on certain stretches.
• Handheld tackle only. Respect the protected zones at the inlets and outlets.

Fishing Fröstjärn

perch, pike and grayling sit at the top of the food chain in Fröstjärn, carried by roach and whitefish. The brown, humic water keeps visibility short — the fishing is more about vibration than sight.

Whoever fishes Fröstjärn regularly builds something of their own: a log of what took, where and when. That's how the water gives up its patterns — cast by cast, never all at once.

General rules of thumb for this kind of water

• Brown, humic water dampens the light — fishing can be good even in the middle of the day.
• Acidified water yields few, hardy species.