Upper Grassy Island Range Light

The Upper Grassy Island Range Light was constructed in 1872 and has been an important aid to navigation on Lake Michigan since its completion.

History

• The lighthouse played a crucial role in guiding mariners through the treacherous waters of the Great Lakes.
• It remains active and is operated by the Green Bay Yachting Club.

Architecture

The tower stands at a height of 10.7 meters (35 feet) above the lake's surface, with a focal height of approximately 24 meters (79 feet).

The lighthouse is built using traditional materials and features a distinctive design that has become iconic in the region.

Light Characteristics

The Upper Grassy Island Range Light emits a fixed white light, visible from a distance of several miles.

The light pattern is not specified, but it is believed to be an important aid to navigation for mariners traversing the lake.

Current Status

The lighthouse continues to serve as an important navigational aid, its primary function having shifted from being a fully automated aid to a more symbolic presence in the region.

Location and Accessibility

Located on Upper Grassy Island in Lake Michigan, the lighthouse can be accessed via the Leo Frigo Bridge, which spans the St. Louis River connecting Green Bay to the mainland.

Visitors can view the lighthouse from the bridge or take a short walk to the island's shore.

Heritage Status

The Upper Grassy Island Range Light is listed on the National Register of Historic Places (NRHP) under criteria C, recognizing its significance as an important aid to navigation and its enduring presence in the region.

The lighthouse has also been designated as a historic landmark by the Green Bay Yachting Club.

Notable Historical Events

While specific details are not available, it is believed that the Upper Grassy Island Range Light played a significant role in maritime history during the late 19th and early 20th centuries.