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Switzerland
Espace Mittelland
Solothurn
Gösgen
Lostorf

Wartenfels Castle – Frohburg Castle Ruins loop from Lostorf

Routes
Hiking trails & Routes
Switzerland
Espace Mittelland
Solothurn
Gösgen
Lostorf

Wartenfels Castle – Frohburg Castle Ruins loop from Lostorf

Intermediate

5.0

(2)

25

hikers

Wartenfels Castle – Frohburg Castle Ruins loop from Lostorf

04:16

13.6km

490m

Intermediate hike. Good fitness required. Mostly accessible paths. Sure-footedness required. The starting point of the route is accessible with public transport.

Last updated: August 14, 2025

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1

1.63 km

Wartenfels Castle

Highlight • Castle

The castle Wartenfels is an old stately building group with a small park on the hill west of the village Lostorf in the canton of Solothurn.
The core of the …

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2

5.99 km

View of Geissflue Ridge

Highlight • Viewpoint

Ridge hike towards Geissflue. You should have good shoes, be sure-footed and not afraid of heights. Fantastic view!

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3

6.19 km

Geissflue Summit Cross and View of Trimbach

Highlight • Summit

Beautiful viewpoint near the ruin Froburg with summit cross at the highest point.

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4

6.64 km

Frohburg Castle Ruins

Highlight • Castle

The Frohburg is the ruin of a rock castle in the municipality of Trimbach in the Swiss canton of Solothurn and is one of the largest medieval castle ruins in …

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5

7.25 km

Restaurant Froburg

Highlight • Restaurant

Summer opening hours:

March to the end of October:

Open Wednesday to Saturday from 9:00 am to about 10:00 pm, Sunday open until 6:00 pm!

Hot meals from the snack menu on Sundays until 16.30

Closed on Mondays and Tuesdays

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6

7.44 km

Viewpoint at Geissflue

Highlight • Viewpoint

Beautiful vantage point with seating.

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7

8.21 km

Grill Area With Panoramic View of Solothurn

Highlight • Rest Area

Beautiful view from the barbecue area
Fire pit with bench and grill tray with grill grate

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8

8.28 km

Viewpoint and barbecue area at Dottenberg

Highlight • Viewpoint

In the winter often just above the fog - then it is especially nice with the fresh hoarfrost on the trees and blue sky

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13.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

8.66 km

2.20 km

1.93 km

742 m

106 m

Surfaces

7.97 km

1.64 km

1.54 km

1.23 km

920 m

342 m

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Elevation

Elevation

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Weather

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Today

Wednesday 22 October

16°C

13°C

70 %

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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