Operator
Roslagen Media Group
Read more →Optical Telegraph
The optical telegraph is a predecessor to the electric telegraph and was invented in France at the end of the 18th century.
Source: OpenStreetMap (ODbL).
Facts & directions
- Season: Year-round
Getting here
Grisslehamn kapell · 399 m away
Distance as the crow flies
- Stockholmapprox 95 km
- Uppsalaapprox 70 km
- Norrtäljeapprox 40 km
As the crow flies — not driving distance.