The lighthouse tower itself.
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The oil house of Split Rock. This building was built with extra thick walls and a thicker than normal roof in case of explosion since it housed very flammable oil and kerosene.
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Split Rock was converted to electricity in 1940. This electric generator was kept on site to use as a backup power source for the light.
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The front of the fog signal building. This building used to house large gas powered steam generators.
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The back of the fog signal building.
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The keeper's residences. Split Rock had three keepers and each had his own house. The head keeper's house has been restored and is open for tours. The other two houses are lived in by the staff that now maintain the lighthouse.
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The original clockworks of Split Rock. In most lighthouses this has been replaced with an electric motor. The clockworks is like a giant grandfather clock or cuckoo clock. It is used to rotate the lens of the lighthouse. When the clockworks is wound up, the weight is at the top of the tower. When the lens begins spinning, the counterweight slowly falls down a metal tube in the center of the tower. When it gets to the bottom, the clockworks has to be wound up again.
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This is the clockworks counter weight for Split Rock. As you can see in this photo, the counter weight is at the bottom of the tower, so it is almost time to wind the clockworks again.
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This photo is taken standing in the watch room, just below the lantern. From this perspective you are looking up into the fresnel lens itself. You can see that the light is currently powered by an electric light bulb. It was originally powered with a kerosene lamp.
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