Pottawatomie Lighthouse
Thordarson Loop Trail

Pottawatomie Lighthouse
The Pottawatomie Lighthouse, also known as the Rock Island Light, has a rich history dating back to 1836 when it was first lit. It is the oldest light station in Wisconsin and on Lake Michigan. For nearly a decade, the lighthouse served as an important aid to navigation for mariners traversing the waters of Door County.
Architecture
The Pottawatomie Lighthouse stands at a height of approximately 35 feet (10.6 meters) above the surrounding terrain. Its focal height is around 55 feet (16.7 meters), allowing it to effectively guide vessels across Lake Michigan. The lighthouse's architecture is characteristic of traditional American lighthouses, with a square tower supporting a lantern room and first-order Fresnel lens.
The construction materials used in the building of the Pottawatomie Lighthouse include stone and wood. The tower's foundation is built on a rocky outcropping, providing stability for the structure.
Light Characteristics
The Pottawatomie Lighthouse emits a fixed white light with a range of approximately 20 nautical miles (37 kilometers). This allows mariners to safely navigate the waters surrounding Rock Island.
Current Status
The Pottawatomie Lighthouse is currently an active aid to navigation, although it has been automated since 1946. The lighthouse remains in operation, guiding vessels across Lake Michigan with its distinctive white light.
Location and Accessibility
The Pottawatomie Lighthouse is located on Rock Island in Door County, Wisconsin, within the boundaries of Rock Island State Park. Visitors can access the lighthouse via the Thordarson Loop Trail, which offers stunning views of the surrounding waters and landscape.
Heritage Status
The Pottawatomie Lighthouse has been recognized for its historical significance, with its designation as a notable landmark in Wisconsin's maritime heritage.
Notable Historical Events
In 1836, the Pottawatomie Lighthouse was first lit, marking an important milestone in the history of navigation on Lake Michigan. The lighthouse played a significant role during World War II, serving as a vital aid to navigation for Allied forces.
History
- The Pottawatomie Lighthouse has a rich history dating back to 1836 when it was first lit. It is the oldest light station in Wisconsin and on Lake Michigan.
- For nearly a decade, the lighthouse served as an important aid to navigation for mariners traversing the waters of Door County.
Architecture
- The Pottawatomie Lighthouse stands at a height of approximately 35 feet (10.6 meters) above the surrounding terrain.
- The lighthouse's architecture is characteristic of traditional American lighthouses, with a square tower supporting a lantern room and first-order Fresnel lens.
Light Characteristics
- The Pottawatomie Lighthouse emits a fixed white light with a range of approximately 20 nautical miles (37 kilometers).
Notable Historical Events
- In 1836, the Pottawatomie Lighthouse was first lit, marking an important milestone in the history of navigation on Lake Michigan.
- The lighthouse played a significant role during World War II, serving as a vital aid to navigation for Allied forces.
Details
| Name | Pottawatomie Lighthouse |
|---|---|
| City | Town of Washington |
| Country | United States |
| Coordinates | 45.42755, -86.8282 |
| Current use | active aid to navigation |
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Pilot Island Lighthouse
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